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Sodium Omadine 40% is often used in water based fluids such as metal working, hydraulic, industrial lubricants, and water based latex paint applications.
Sodium Omadine 40% is utilized in industrial water treatment systems, cooling water formulations, and recirculating process fluids to suppress bacterial, fungal, and algal growth that can reduce operational efficiency and contribute to biofilm formation.
Sodium Omadine 40% is also employed in household cleaners, institutional cleaning products, specialty detergents, and maintenance chemicals requiring controlled preservation of aqueous formulations throughout storage and distribution.
CAS Number: 3811‑73‑2
EC Number: 223‑296‑5
Molecular formula: C₅H₄NNaOS
Molecular weight: ~149.15–151.16 g/mol (sometimes listed ~151 g/mol)
SYNONYMS:
1-Hydroxy-2-pyridinethione sodium salt; 2-Mercaptopyridine-1-oxide sodium salt; 2-Pyridinethiol-1-oxide sodium salt; Pyrithione sodium salt
Sodium Omadine, Sodium Pyrithione, Pyridine-2-thiol-1-oxide sodium salt, 2-Mercaptopyridine N-oxide sodium salt, Omadine sodium, Pyrithione sodium salt, Sodium pyrithione, PYRITHIONE SODIUM, Sodium Omadine, 15922-78-8, 3811-73-2, Omadine sodium, Omacide 24, Omadine-sodium, Caswell No. 790A, Pyrithione sodium [USAN], Pyrithione sodium salt, Sodium 2-pyridinethiol-1-oxide, AL02725, 2(1H)-Pyridinethione, 1-hydroxy-, sodium salt, Tomicide s, Sodium 1-hydroxypyridine-2-thione, EINECS 240-062-8, EPA Pesticide Chemical Code 088004, SQ 3277, Topcide 280, 1-Hydroxy-2(1H)-pyridinethionato sodium, Sodium omadine (TN), 1-Hydroxy-2(1H)-pyridinethione, sodium salt, Pyrithione sodium (USAN), Sodium omadine (VAN), Sel de sodium de 1-hydroxy-2 (1H)-pyridinethione [French], Sodium pyrithione (VAN), DTXSID6034920, Sel de sodium de 1-hydroxy-2 (1H)-pyridinethione, AL-02725, NSC-4483, SODIUM SALT OF 1-HYDROXY 2(1H)-PYRIDINE THIONE, 2-PYRIDINETHIOL-1-OXIDE, SODIUM SALT, PYRITHIONE SODIUM [WHO-DD], DTXCID4014920, SODIUM PYRITHIONE [INCI], 223-296-5, 240-062-8, 2(1h)-pyridinethione, 1-hydroxy-, sodium salt (1:1), 2-pyridinethiol, 1-oxide, sodium salt (1:1), sodium;1-oxidopyridine-2-thione, Sodium 2-thioxopyridin-1(2H)-olate, 2-Mercaptopyridine n-oxide sodium, 2-Mercaptopyridine N-oxide sodium salt anhydrous, Pyrithione (sodium), SCHEMBL271923, CHEMBL2105351, HY-B1747A, Sodium 2-sulfidopyridine 1-oxide, CHEBI:201738, 2-mercaptopyridinen-oxidesodiumsalt, AKOS015891512, DA-49434, NS00054613, D05662, Sodium omadine, Na-2-pyridinethiol-1-oxide, Sodium pyrithione, 1-Hydroxypyridine-2-thione sodium salt, 2-Mercaptopyridine-N-oxide, 2-pyridinethiol-1-oxide, 1-Hydroxy-2(1H)-pyridinethione, 2-Pyridinethiol, 1-oxide, sodium salt (1:1), 2-Pyridinethiol, 1-oxide, sodium salt, Sodium, (2-pyridylthio)-, N-oxide, 2-Pyridinethiol, 1-oxide, sodium deriv., Sodium 2-mercaptopyridine 1-oxide, Sodium 2-pyridinethiol 1-oxide, Sodium, (2-pyridinylthio)-, N-oxide, Sodium 2-pyridinethiol N-oxide, Thione (reagent), 2-Mercaptopyridine N-oxide sodium salt, Sodium 2-pyridinethiolate 1-oxide, 2-Mercaptopyridine oxide sodium salt, 2-Pyridinethiol N-oxide sodium salt, Sodium pyrithione, 1-Oxo-2-pyridinethiol sodium salt, 2-Mercaptopyridine 1-oxide sodium salt, Sodium pyridine-2-thione-N-oxide, Sodium 2-mercaptopyridine N-oxide, Sodium pyridine-1-oxide-2-thiolate, 2-Pyridylthiol-N-oxide sodium salt, Topcide 280, San-aibac Sodium Omadine, Sodium 2-pyridinethiolate N-oxide, Tomicide S, Hokucide N 100, Sodium (2-pyridylthio-1-oxide), Hokucide N38, Starcide SP 40, 2-Pyridinethiol 1-Oxide Sodium Salt (1:1), 2-Pyridinethiol 1-Oxide Sodium Deriv., 2-Pyridinethiol 1-Oxide Sodium Salt, Sodium (2-pyridylthio)-N-oxide, 1-Oxo-2-pyridinethiol Sodium Salt, Sodium Pyridine-2-thione-N-oxide, Sodium Pyrithione, 2-Mercaptopyridine 1-Oxide Sodium Salt, 2-Mercaptopyridine N-oxide Sodium Salt, 2-Mercaptopyridine Oxide Sodium Salt, 2-Pyridinethiol N-Oxide Sodium Salt, 2-Pyridylthiol-N-oxide Sodium Salt, Sodium (2-Pyridinylthio)-N-oxide, 1-Hydroxy-2-pyridinethione sodium salt, 2-Mercaptopyridine-1-oxide sodium salt, 2-Pyridinethiol-1-oxide sodium salt, Pyrithione sodium salt, 2-Mercaptopyridine N-oxide sodium salt anhydrous, Sodium omadine, sodium pyrithione, 2-Mercaptopyridine-N-oxide, sodium salt, N-Hydroxy-2-pyridinethione, sodium salt, 2-Pyridinethiol-1-oxide, sodium salt, Mercaptopyridine-N-oxide sodium salt, 2-Pyridinethiol 1-Oxide Sodium Salt (1:1), 2-Pyridinethiol 1-Oxide Sodium Deriv., 2-Pyridinethiol 1-Oxide Sodium Salt, Sodium (2-pyridylthio)-N-oxide, 1-Oxo-2-pyridinethiol Sodium Salt, 2-Mercaptopyridine 1-Oxide Sodium Salt, 2-Mercaptopyridine N-oxide Sodium Salt, 2-Mercaptopyridine Oxide Sodium Salt, 2-Pyridinethiol N-Oxide Sodium Salt, 2-Pyridylthiol-N-oxide Sodium Salt, Hokucide N 100, San-aibac Sodium Omadine, Sodium (2-pyridylthio-1-oxide), Sodium 2-mercaptopyridine 1-Oxide, Sodium 2-Mercaptopyridine N-Oxide, Sodium 2-Pyridinethiol 1-Oxide, Sodium 2-Pyridinethiol N-Oxide, Sodium 2-Pyridinethiolate 1-Oxide, Sodium 2-Pyridinethiolate N-Oxide, Sodium Pyridine-1-oxide-2-thiolate, Sodium Pyridine-2-thione-N-oxide, Sodium Pyrithione, Sodium (2-Pyridinylthio)-N-oxide, Thione (reagent), Tom, 2-Pyridinethiol,1-oxide,sodium salt (1:1), 2-Pyridinethiol,1-oxide,sodium salt, Sodium,(2-pyridylthio)-,N-oxide, 2-Pyridinethiol,1-oxide,sodium deriv., Sodium 2-mercaptopyridine 1-oxide, Sodium 2-pyridinethiol 1-oxide, Sodium,(2-pyridinylthio)-,N-oxide, Sodium 2-pyridinethiol N-oxide, Thione (reagent), 2-Mercaptopyridine N-oxide sodium salt, Sodium 2-pyridinethiolate 1-oxide, 2-Mercaptopyridine oxide sodium salt, 2-Pyridinethiol N-oxide sodium salt, Sodium pyrithione, 1-Oxo-2-pyridinethiol sodium salt, 2-Mercaptopyridine 1-oxide sodium salt, Sodium pyridine-2-thione-N-oxide, Sodium 2-mercaptopyridine N-oxide, Sodium pyridine-1-oxide-2-thiolate, 2-Pyridylthiol-N-oxide sodium salt, Topcide 280, San-aibac Sodium Omadine, Sodium 2-pyridinethiolate N-oxide, Tomicide S, Hokucide N 100, Sodium (2-pyridylthio-1-oxide), Hokucide N38, Starcide SP 40, 5412-36-2, 75164-71-5, 878632-79-2
Sodium Omadine 40% is a broad-spectrum antifungal and antibacterial preservative based on sodium pyrithione.
Sodium Omadine 40% is designed for the preservation of industrial products against spoilage caused by fungi, yeasts, and bacteria.
Sodium Omadine 40% is isothiazolinone-free and can be used as both a wet-state and dry-film preservative.
Sodium Omadine 40% is suitable for a paints and coatings applications.
Sodium Omadine 40% has a shelf life of 24 months.
Sodium Omadine 40% is an amber colored liquid broad spectrum anti-fungal agent.
Sodium Omadine 40% is effective against most fungi, yeasts, and molds commonly found in contaminated metalworking fluid systems.
Sodium Omadine 40% is one of the few effective water-soluble fungicides available for use by this industry, and an excellent choice as a post treatment additive.
Sodium Omadine 40% is for use in metalworking, cutting, cooling, and lubricating fluids.
Sodium Omadine 40% is a sodium pyrithione.
Sodium Omadine 40% possesses high water solubility, high activity and non-irritating & non-sensitizing properties.
Sodium Omadine 40% provides good short-term protection against bacteria and fungus.
Sodium Omadine 40% is a highly active, broad-spectrum antimicrobial agent that, when used at recommended concentrations, can help to prevent and minimize problems associated with fungal contamination.
Sodium Omadine 40% is the 40% aqueous sodium salt derivative of pyrithione.
Sodium Omadine 40% is a broad spectrum antifungal agent and is effective against many fungi (yeast and mold) commonly found in metalworking fluid systems and an excellent choice for use as a tankside additive.
Sodium Omadine 40% (SPT), CAS number 3811-73-2, is an important organic compound with extensive industrial applications and biological activity.
Sodium Omadine 40% is registered with the United States Environmental Protection Agency (US EPA Reg. No. 1258-843) under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), for use in metalworking, cutting, cooling and lubricating concentrates and end-use fluids.
Sodium Omadine 40% is a fungicide, 40% active content, formaldehyde free, pH stable aqueous solution designed for concentrates and tankside use.
Sodium Omadine 40% is highly effective against micro-organisms.
Sodium Omadine 40% is able to be used in low doses, reduces
Sodium Omadine 40% is a range of broad-spectrum biocides based on water-soluble Sodium Omadine 40% technology.
These preservatives are used for wet-state protection of industrial waterborne coatings and latex paints.
Sodium Omadine 40%, also known as sodium omepridine, pyrithione, and sodium α-mercaptopyridine-N-oxide, are pyridine derivative fungicides.
Sodium Omadine 40% is yellow full light ochre transparent liquid, melting point 250 ° C, soluble in water and ethanol and other organic solvents.
Sodium Omadine 40% is unstable to light, oxidant and strong reducing agent.
Nonionic surfactants make Sodium Omadine 40% slightly inactive, and it can chelate with heavy metals.
Sodium Omadine 40% is the sodium salt form of pyrithione, a fungistatic and antimicrobial derivative of aspergillic acid.
Although the exact mechanism of action remains to be fully elucidated, Sodium Omadine 40% appears to interfere with membrane transport ultimately leading to a loss of metabolic control.
Sodium Omadine 40% is a stabilized aqueous solution containing approximately 40% sodium pyrithione, a highly effective broad-spectrum antimicrobial agent widely used for the preservation of industrial products.
Sodium Omadine 40% exhibits excellent antibacterial, antifungal, anti-yeast, and algicidal activity, making it an important preservative in paints, coatings, adhesives, metalworking fluids, polymer emulsions, and numerous water-based industrial formulations.
The active ingredient, sodium pyrithione, belongs to the pyrithione family of antimicrobial compounds and acts by disrupting microbial membrane transport processes and cellular energy metabolism, ultimately inhibiting microbial growth and reproduction.
Because of this unique mechanism of action, Sodium Omadine 40% provides effective protection against spoilage organisms while maintaining long-term product stability.
Unlike many conventional preservatives, Sodium Omadine 40% provides both in-container preservation and dry-film protection, helping prevent microbial contamination during manufacturing, storage, transportation, and service life.
Its water solubility and broad formulation compatibility make Sodium Omadine 40% suitable for incorporation into numerous aqueous industrial systems.
Sodium Omadine 40% is valued for its high efficacy at relatively low use levels, good storage stability, and compatibility with many surfactants, polymers, pigments, and formulation additives.
USES and APPLICATIONS of SODIUM OMADINE 40%:
Medical field: Sodium Omadine 40% is used to formulate disinfectants, antiseptics, and broad-spectrum antifungal dermatological medications for the treatment of skin fungal infections and other conditions.
Sodium Omadine 40% is extensively used as an industrial preservative in water-based paints, architectural coatings, decorative coatings, primers, and specialty coatings where it protects products from bacterial and fungal spoilage during storage, transportation, and application while also providing dry-film protection against mold growth on cured coatings.
Sodium Omadine 40% is widely incorporated into adhesives, sealants, caulks, polymer emulsions, latex dispersions, and construction chemicals to prevent microbial degradation that could otherwise reduce viscosity, generate unpleasant odors, discolor products, or shorten shelf life.
Applications of Sodium Omadine 40%: Other Home Care, Preservative, Institutional, Other Home Care Preservation, Dish Care, Household, Surface Care, Auto Care.
Sodium Omadine 40% is widely used in many fields, including medicine, daily chemicals, metal processing, agricultural products, anti-corrosion coatings, leather products, textiles, paper, and bamboo, wood, rattan, and grass products.
In the medical and chemical industry, Sodium Omadine 40% is used in various antifungal drugs and shampoo and skin care products.
In the agricultural sector, Sodium Omadine 40% is used as a fungicide for fruit trees, peanuts, cereals, vegetables, and other crops; in the industrial sector, it is used as a mold inhibitor in building coatings, adhesives, sealants, and other products.
treatment costs and can be used in post treatment or metalworking fluid concentrates.
In the metalworking industry, Sodium Omadine 40% serves as an effective antimicrobial additive for water-based cutting fluids, coolants, grinding fluids, and machining emulsions, helping maintain fluid cleanliness, reduce microbial slime formation, improve equipment hygiene, and extend coolant service life.
The formulation of Sodium Omadine 40% is commonly used in textile auxiliaries, pigment dispersions, ceramic slurries, printing inks, paper coatings, mineral suspensions, and specialty process fluids where microbiological stability is essential for maintaining consistent product quality.
Sodium Omadine 40% is often used in water based fluids such as metal working, hydraulic, industrial lubricants, and water based latex paint applications.
Sodium Omadine 40% chemistry is often used when stability and low leachability is critical.
Sodium Omadine 40% is utilized in industrial water treatment systems, cooling water formulations, and recirculating process fluids to suppress bacterial, fungal, and algal growth that can reduce operational efficiency and contribute to biofilm formation.
Sodium Omadine 40% is also employed in household cleaners, institutional cleaning products, specialty detergents, and maintenance chemicals requiring controlled preservation of aqueous formulations throughout storage and distribution.
In certain regions and regulatory frameworks, Sodium Omadine 40% has historically been used in personal care products such as shampoos and soaps for dandruff control; however, cosmetic uses are now subject to significant regulatory restrictions in several jurisdictions, including the European Union.
Industrial preservation remains one of Sodium Omadine 40%'s primary applications.
Main application areas of Sodium Omadine 40%: daily chemical products, adhesives, paper, medicine, pesticides, leather products, disinfection supplies.
The formulation is further applied in polymer manufacturing, emulsion polymerization systems, leather processing chemicals, agricultural formulations, industrial disinfectant concentrates, and numerous specialty chemical products where reliable, long-term microbial protection is required.
Due to the effectiveness at low treat rates, Sodium Omadine 40% saves formulators time and money by gaining more antimicrobial effectiveness, while using less.
Sodium Omadine 40% is used adhesives, Aerospace, Architectural, Automotive, Ceramics, Corrugated Boxes, Glues, Industrial, Machinery & Appliances, Medical Devices, Packaging.
Sodium Omadine 40% is used paper & Consumables, Sealants, Tapes, Textiles, Wood Glues, Building & Construction, Caulks and Sealants, Concrete Adhesives, Concrete Admixtures, Grout, Insulation, Mineral Slurries, Spray Foam Insulation.
Sodium Omadine 40% is used wallboard Paper, Coatings, Aerosol Coatings, Antistatic Coatings, Architectural Coatings, Basecoats, Can Coatings, Ceramic Coatings, Concrete Coatings, Conformal Coatings, Consumer Paints, Electronics Coatings.
Sodium Omadine 40% is used floor Coatings, Heat Seal Coatings, Industrial Coatings, Lacquers, Plastic Coatings, Polyurea Coatings, Roof Coatings, Textile & Leather Coatings, Traffic Paint, Wax and Polishes, Inks.
Sodium Omadine 40% is used automotive Inks, Digital Inks, Lubricant Formulation, Hydraulic Oil Formulating, Industrial Oil Formulating, Metal Working Fluid Formulating.
-Personal care products uses of Sodium Omadine 40%:
*Widely used in shampoo, conditioner, and other rinse-off products, it has anti-dandruff, anti-itch, and anti-mold/antimicrobial effects.
*As a preservative, Sodium Omadine 40% prevents product spoilage and mold growth, extending shelf life.
-Industrial Applications of Sodium Omadine 40%:
*Building Coatings:
Sodium Omadine 40% is used as a mold inhibitor to prevent mold growth during storage and use.
*Adhesives and Sealants:
Sodium Omadine 40% inhibits microbial growth, enhancing product stability and durability.
*Metalworking Fluids:
Sodium Omadine 40% acts as a biocide to control bacteria and fungi in cutting fluids and coolants, preventing degradation and odor.
*Textiles and leather products:
Sodium Omadine 40% prevents mold growth on fibers and leather in humid environments, maintaining product appearance and performance.
-Agricultural field uses of Sodium Omadine 40%:
*As a fungicide, used for disease control in crops such as fruit trees, peanuts, cereals, and vegetables.
*An excellent disinfectant for silkworm farming, ensuring hygiene and safety in sericulture.
KEY FEATURES OF SODIUM OMADINE INCLUDE:
Effective against yeasts and molds.
Excellent wet-state preservation.
Water-soluble and easy to incorporate.
Suitable for waterborne coating systems.
CHEMICAL PROPERTIES of SODIUM OMADINE 40%:
Sodium Omadine 40% derives its antimicrobial activity from sodium pyrithione, a heterocyclic sulfur-containing compound possessing both sulfur and oxygen donor atoms capable of interacting with microbial enzyme systems.
Sodium Omadine 40% interferes with membrane transport mechanisms, disrupting essential metabolic processes and ion transport within microbial cells.
This ultimately inhibits ATP production, enzyme activity, and cellular respiration, leading to effective microbial control.
Sodium Omadine 40% exhibits broad-spectrum activity against Gram-positive bacteria, Gram-negative bacteria, molds, yeasts, fungi, algae, and various spoilage microorganisms commonly encountered in industrial water-based systems.
Sodium Omadine 40% remains highly soluble in water, allowing uniform distribution throughout aqueous formulations while maintaining long-lasting preservation efficiency.
Under acidic conditions Sodium Omadine 40% may gradually decompose; therefore, formulations are generally maintained within neutral to mildly alkaline pH ranges for optimum stability.
CHARACTERISTICS of SODIUM OMADINE 40%:
Sodium Omadine 40% exhibits broad-spectrum antimicrobial performance.
Sodium Omadine 40% demonstrates excellent fungicidal and bactericidal activity.
Sodium Omadine 40% provides effective algicidal properties.
The formulation offers excellent water solubility.
The active ingredient, Sodium Omadine 40%, performs efficiently at relatively low concentrations.
Sodium Omadine 40% provides long-term preservation of water-based formulations.
Sodium Omadine 40% exhibits excellent compatibility with numerous industrial additives.
The formulation remains stable under recommended storage conditions.
Sodium Omadine 40% provides both wet-state and dry-film preservation.
Sodium Omadine 40% is free from formaldehyde-releasing preservatives.
Certain grades are also available as isothiazolinone-free preservation systems for specific industrial formulations.
BENEFITS of SODIUM OMADINE 40%:
Sodium Omadine 40% effectively protects industrial formulations from bacterial, fungal, yeast, and algal contamination, extending product shelf life and maintaining consistent product quality.
Sodium Omadine 40%'s excellent antimicrobial efficiency reduces spoilage, unpleasant odors, viscosity changes, discoloration, gas formation, and microbial degradation that commonly occur in water-based products.
Sodium Omadine 40% minimizes production downtime caused by microbial contamination in manufacturing systems, storage tanks, circulation equipment, and process fluids.
Sodium Omadine 40%'s broad-spectrum activity allows formulators to control multiple classes of microorganisms using a single preservative system.
The aqueous formulation enables rapid incorporation into manufacturing processes without requiring complex dispersion procedures.
Sodium Omadine 40% remains effective over extended storage periods, providing reliable long-term preservation during transportation and end use.
Sodium Omadine 40%'s low effective dosage reduces formulation costs while maintaining excellent microbiological protection.
Sodium Omadine 40% contributes to improved product stability, longer service life, reduced maintenance requirements, and enhanced customer satisfaction across numerous industrial applications.
FEATURES & BENEFITS of SODIUM OMADINE 40%:
EPA registered.
Low treat rates.
Non-leaching results with long term protection.
Ease of application in aqueous form.
FUNCTIONS of SODIUM OMADINE 40%:
Adhesives
Biocides
Building & Construction
Biocide
Preservatives
Coatings
Biocides
Inks
Biocides
Lubricant Formulation
Biocides
GOOD STABILITY of SODIUM OMADINE 40%:
*Sodium Omadine 40% is stable under alkaline or neutral conditions, but its effectiveness is reduced in acidic environments.
*When stored in the dark, Sodium Omadine 40%'s content remains unchanged for two years, demonstrating excellent storage stability.
TECHNICAL INFORMATIONof SODIUM OMADINE 40%:
Sodium Omadine 40% is based on Sodium Omadine, one of the most effective non-oxidizing industrial antimicrobial agents available for water-based systems.
Sodium Omadine 40%'s unique mode of action reduces the likelihood of rapid microbial adaptation compared with preservatives that target a single biochemical pathway.
Sodium Omadine 40% provides excellent preservation performance over a wide range of industrial formulations and can often be combined with other approved preservative systems to broaden antimicrobial efficacy and optimize long-term protection.
Its combination of high antimicrobial activity, excellent water solubility, formulation compatibility, and long-term stability has made Sodium Omadine 40% an important preservative for paints, coatings, metalworking fluids, adhesives, polymer emulsions, and numerous other industrial products.
WHERE IS SODIUM OMADINE 40% FOUND?
Sodium Omadine 40% is a bactericide and preservative found in coolants, make-up removers, paints, lubricants, and latex.
WHAT ARE SOME PRODUCTS THAT MAY CONTAIN SODIUM OMADINE 40%?
Household Products
• Cooling fluids
• Paints
• Synthetic fiber lubricants
• Vinyl acetate latex
Liquids
• Cosmetic rinse-off products
PHYSICAL and CHEMICAL PROPERTIES of SODIUM OMADINE 40%:
IUPAC name: Sodium 2‑pyridinethiol‑1‑oxide (also called 2‑mercaptopyridine N‑oxide sodium salt)
CAS Number: 3811‑73‑2
EC / EINECS Number: 223‑296‑5
Molecular formula: C₅H₄NNaOS
Molecular weight: ~149.15–151.16 g/mol (sometimes listed ~151 g/mol)
Appearance: Yellow to brown crystalline powder or liquid (as 40% aqueous solution)
Melting point: ~–25 °C (crystalline form)
Boiling point: ~109 °C (likely decomposition)
Density: ~1.22 g/cm³ (solid)
Water solubility: ~54.7 g/100 mL at 20 °C
Log P: ~–2.38 (hydrophilic)
pH (40% solution): ~9.5–11.5
Molecular Weight: 149.15 g/mol
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 2
Rotatable Bond Count: 0
Exact Mass: 148.99112921 Da
Monoisotopic Mass: 148.99112921 Da
Topological Polar Surface Area: 58.4 Ų
Heavy Atom Count: 9
Formal Charge: 0
Complexity: 166
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 2
Compound Is Canonicalized: Yes
Empirical Formula (Hill Notation): C5H4NNaOS
CAS Number: 3811-73-2
Molecular Weight: 149.15
Beilstein: 4026050
EC Number: 223-296-5
MDL number: MFCD01941547
UNSPSC Code: 51102829
PubChem Substance ID: 24895565
NACRES: NA.85
Physical state: crystalline
Color: beige
Odor: Stench.
Melting point/freezing point: No data available
Initial boiling point and boiling range: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Flash point: Not applicable
Autoignition temperature: 240 - < 250 °C
Decomposition temperature: No data available
pH: No data available
Viscosity:
Viscosity, kinematic: 6,687 mm²/s at 20 °C
Viscosity, dynamic: No data available
Water solubility: 646.6 g/l at 20.1 °C - completely soluble
Partition coefficient:
n-octanol/water log Pow: -2.69 at 20 °C - Bioaccumulation is not expected.
Vapor pressure: No data available
Density: No data available
Relative density: 1.6 at 23.6 °C - OECD Test Guideline 109
Relative vapor density: No data available
Particle characteristics: No data available
Explosive properties: No data available
Oxidizing properties: none
Other safety information:
Surface tension: 65.01 mN/m at 20.1 °C
Formula: C5H5NOS·Na
InChI: InChI=1S/C5H5NOS.Na/c7-6-4-2-1-3-5(6)8;/h1-4,8H;
InChI key: InChIKey=XDILZEPJCPEDLT-UHFFFAOYSA-N
SMILES: [Na].O=N=1C=CC=CC1S
Molecular Weight: 149.15
Exact Mass: 148.991
BRN: 4026050
EC Number: 223-296-5
HS code: 29333990
PSA: 58.4
XLogP3: 1.02090
Appearance: very deep brown Solution
Density: 1.22
Melting Point: -25 °C
Boiling Point: 109 °C
Flash Point: 107.3ºC
Water Solubility: H2O: 54.7 g/100 mL
Storage Conditions: Keep container closed when not in use.
Store in a tightly closed container.
Store in a cool, dry, well-ventilated area away from incompatible substances.
Store protected from moisture.
Formula / Mol. Wt.: C₅H₄NNaOS / ~149–151 g/mol
CAS / EC Number: 3811‑73‑2 / 223‑296‑5
Appearance: Yellow/brown crystalline or aqueous liquid
Melting / Boiling Point: ~–25 °C / ~109 °C
Density: ~1.22 g/cm³
Solubility: Highly soluble in water
Log P: –2.38 (hydrophilic)
pH (40% solution): ~9.5–11.5
Main Uses: Antimicrobial in cosmetics, industrial biocide, fungicide
Safety hazards: Skin/eye irritant; toxic; aquatic hazard
Handling: PPE, ventilation, segregated storage
Molecular Formula: C₅H₄NNaOS
Molecular Weight: 327.23
Appearance: No Data Available
Purity: >98%
Storage Condition: No Data Available
Melting point: -25 °C
Boiling point: 109 °C
Density: 1.22
Vapor pressure: 0-0Pa at 25℃
Refractive index: 1.4825
Storage temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
Solubility: H2O: 0.1 M at 20 °C, clear, faintly yellow
Form: Solution
Color: very deep brown
Biological source: synthetic
Water Solubility: 54.7 g/100 mL
Sensitive: Hygroscopic
λmax: 334nm(H2O)(lit.)
Merck: 14,7994
BRN: 4026050
InChIKey: WNGMMIYXPIAYOB-UHFFFAOYSA-M
LogP: -2.38 at 20℃ and pH7
Surface tension: 65.013-72.6mN/m at 1-1.02g/L and 20-20.1℃
CAS DataBase Reference: 3811-73-2(CAS DataBase Reference)
EWG's Food Scores: 1-3
FDA UNII: 6L3991491R
EPA Substance Registry System: Sodium (2-pyridylthio)-N-oxide (3811-73-2)
UNSPSC Code: 51102829
NACRES: NA.85
Appearance: Clear to pale yellow or amber liquid
Color: Pale yellow to amber
Odor: Mild characteristic odor
Physical State: Liquid
Active Ingredient: Sodium Pyrithione
Active Content: Approximately 40%
Molecular Formula (Active): C₅H₄NNaOS
Molecular Weight (Active): 149.15 g/mol
Density (20–25°C): Approximately 1.18–1.22 g/cm³
pH (10% aqueous solution): Approximately 8.5–10.5
Water Solubility: Completely miscible
Solubility in Alcohols: Slightly soluble
Solubility in Non-polar Solvents: Practically insoluble
Boiling Point: Depends on water content; active ingredient decomposes before boiling
Melting Point: Not applicable (aqueous solution)
Flash Point: Not applicable
Vapor Pressure: Similar to water
Volatility: Low
Flammability: Non-flammable aqueous solution
Oxidizing Properties: None
Reducing Properties: None
Chemical Stability: Stable under recommended storage conditions
Thermal Stability: Good below recommended storage temperatures
Light Sensitivity: Sensitive to prolonged UV exposure
Oxidation Sensitivity: May slowly degrade in the presence of strong oxidizing agents
Compatibility: Compatible with many water-based formulations
Shelf Life: Typically up to 24 months when properly stored
Storage Temperature: Commonly 10–30°C
Freeze Stability: Protect from freezing
Product Name: Sodium Omadine® 40%
Active Ingredient: Sodium Pyrithione (40% aqueous solution)
Chemical Name: Sodium Pyrithione
IUPAC Name: Sodium 1-Oxidopyridine-2-thione
Chemical Type: Organic Sulfur Compound
Chemical Family: Pyrithione Salts
CAS No.: 3811-73-2
EC No.: 223-296-5
Molecular Formula (Active Ingredient): C₅H₄NNaOS
Molecular Weight (Active Ingredient): 149.15 g/mol
Active Content: Approximately 40% Sodium Pyrithione
Physical Form: Aqueous Solution
Chemical Classification: Antimicrobial Preservative / Biocide / Fungicide
PSA: 58.4
XLogP3: 1.02090
Appearance: very deep brown Solution
Density: 1.22
Melting Point: -25 °C
Boiling Point: 109 °C
Flash Point: 107.3ºC
Water Solubility: H2O: 54.7 g/100 mL
Product Name: Sodium pyrithione
CAS No.: 3811-73-2
Molecular Formula: C5H5NOS.Na
InChIKeys: InChIKey=XDILZEPJCPEDLT-UHFFFAOYSA-N
Molecular Weight: 149.15
Exact Mass: 148.991
BRN: 4026050
EC Number: 223-296-5
HScode: 29333990
Categories: Organometalate
Molecular Weight: 149.15 g/mol
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 2
Rotatable Bond Count: 0
Exact Mass: 148.99112921 Da
Monoisotopic Mass: 148.99112921 Da
Topological Polar Surface Area: 58.4 Ų
Heavy Atom Count: 9
Formal Charge: 0
Complexity: 166
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 2
Compound Canonicalized: Yes
FIRST AID MEASURES of SODIUM OMADINE 40%:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available
ACCIDENTAL RELEASE MEASURES of SODIUM OMADINE 40%:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.
FIRE FIGHTING MEASURES of SODIUM OMADINE 40%:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.
EXPOSURE CONTROLS/PERSONAL PROTECTION of SODIUM OMADINE 40%:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.
HANDLING and STORAGE of SODIUM OMADINE 40%:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of SODIUM OMADINE 40%:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available
