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E265 Dehydroacetic Acid is used as a plasticizer in synthetic resins.
E265 Dehydroacetic Acid is used as an antienzyme in toothpastes.
E265 Dehydroacetic Acid is used as a precursor for dimethyl-4-pyridones.
CAS Number(s): 520-45-6 / 771-03-9 / 16807-48-0
EC Number(s): 208-293-9 / 212-227-4 / -
MDL Number: MFCD00066709
Chem/IUPAC Name: 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione
Chemical formula: C8H8O4
SYNONYMS:
3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one, Biocide 470F, Methylacetopyronone, DHA, dhaa, 3-ACETYL-6-METHYL-2H-PYRAN-2,4(3H)-DIONE, 2H-Pyran-2-one, 3-acetyl-4-hydroxy-6-methyl-, Geogard(R) 221, DEHYDRANONE, Biocide 470F, Geogard(R) 361, Geogard(R) 111A, DA,Dehydroacetic, 2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, Dehydracetic acid, DHA, DHS, 3-Acetyl-6-Methyldihydropyrandione-2,4(3H), 4-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, δ-lactone, Methylacetopyronone, 2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, δ-lactone, 3-Acetyl-6-methyl-2,4(3H)-pyrandione, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, 3-Acetyl-6-methylpyrandione-2,4, 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, enol form, Kyselina dehydroacetova, DHAA, 3-Acetyl-6-methyl-pyran-2,4-dione, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, ion(1-), 3-Acetyl-6-methyl-2,3-dihydropyran-2,4-dione, Acetic acid, dehydro-, Biocide 470F, NSC 8770, 3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one, Biocide 470F, Methylacetopyronone, DHA, dhaa, 3-ACETYL-6-METHYL-2H-PYRAN-2,4(3H)-DIONE, 2H-Pyran-2-one, 3-acetyl-4-hydroxy-6-methyl-, Geogard(R) 221, DEHYDRANONE, Biocide 470F, Geogard(R) 361, Geogard(R) 111A, DA,Dehydroacetic, 2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, Dehydracetic acid, DHA, DHS, 3-Acetyl-6-Methyldihydropyrandione-2,4(3H), 4-Hexenoic acid, 2-acetyl-5-hydroxy-3-oxo-, δ-lactone, Methylacetopyronone, 2-Acetyl-5-hydroxy-3-oxo-4-hexenoic acid, δ-lactone, 3-Acetyl-6-methyl-2,4(3H)-pyrandione, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, 3-Acetyl-6-methylpyrandione-2,4, 3-Acetyl-4-hydroxy-6-methyl-2H-pyran-2-one, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, enol form, Kyselina dehydroacetova, DHAA, 3-Acetyl-6-methyl-pyran-2,4-dione, 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione, ion(1-), 3-Acetyl-6-methyl-2,3-dihydropyran-2,4-dione, Acetic acid, dehydro-, Biocide 470F, NSC 8770, 3-Acetyl-2-hydroxy-6-methyl-4H-pyran-4-one, Biocide 470F, Methylacetopyronone
E265 Dehydroacetic Acid is an organic compound which has several industrial applications.
E265 Dehydroacetic Acid is classified as a pyrone derivative.
E265 Dehydroacetic Acid presents as an odorless, colorless to white crystalline powder, almost insoluble in water and moderately soluble in most organic solvents.
E265 Dehydroacetic Acid is a synthetic preservative.
Used as a preservative in skincare, E265 Dehydroacetic Acid serves the function of preventing the proliferation of microorganisms. E265 Dehydroacetic Acid is present in: Baby cleansing wipes; Facial cleansing wipes; Makeup remover wipes; Eye contour care; Nighttime facial creams.
Biodegradable, E265 Dehydroacetic Acid is used and poses no risk to the environment or health.
Although E265 Dehydroacetic Acid is permitted in organic products, it is prohibited in aerosol-type sprays.
Preservatives allowed in organic products are synthetically reproduced and found in nature.
In addition to E265 Dehydroacetic Acid and other preservatives are permitted for natural and organic care, namely: Benzyl Alcohol; Sodium Benzoate; Sorbic Acid; and Potassium Sorbate.
E265 Dehydroacetic Acid is a white crystalline substance.
Chemical formula of E265 Dehydroacetic Acid is C8H804 .
E265 Dehydroacetic Acid is practically insoluble in water, highly soluble in acetone, benzene and other organic solvents.
E265 Dehydroacetic Acid does not irritate the skin and does not cause any chronic changes in the body of animals even when fed at a dose of 300 mg/kg for 7 weeks.
The residual content is not standardized, since food products are not treated with the preparation.
E265 Dehydroacetic Acid can be stored for a long time.
E265 Dehydroacetic Acid is made from a wide variety of different raw materials depending on which manufacturing process is being used.
E265 Dehydroacetic Acid is a safe ingredient that helps to prevent cosmetics and foods from spoiling.
E265 Dehydroacetic Acid is a pyran-2,4-dione substituted with an acetyl group at the 3-position and a methyl group at the 6-position.
E265 Dehydroacetic Acid is a fungicide and bactericide mainly used in processing fruits and vegetables.
E265 Dehydroacetic Acid acts as a bactericide , antibacterial and plasticizer.
E265 Dehydroacetic Acid is pyran-2,4-dione and ketone.
E265 Dehydroacetic Acid is a secondary ingredient that helps extend the shelf life of a product, also known as a preservative.
E265 Dehydroacetic Acid mainly acts on fungi and is milder on bacteria.
E265 Dehydroacetic Acid is an organic compound derived from a pyrone, used as a fungicide, bactericide and pH regulator.
E265 Dehydroacetic Acid is used as a food additive under the number E265.
Fungicide, is used to preserve pickles and strawberries.
Of synthetic origin probably made from ketene.
E265 Dehydroacetic Acid, also called E265 in food, is a rather bad synthetic preservative.
E265 Dehydroacetic Acid, although this substance occurs naturally in some plants, it is produced synthetically for cosmetic purposes.
E265 Dehydroacetic Acid is an organic compound, a derivative of pyrone, which is used as a fungicide (kills parasitic fungi and molds), a bactericide (destroys bacteria), and an antimicrobial (destroys and prevents the reproduction of microorganisms).
Not only does E265 Dehydroacetic Acid function as a preservative in cosmetic products (it extends the shelf life of the product and protects it from deterioration and deterioration by external influences), in the food industry this substance is known under the designation E265.
E265 Dehydroacetic Acid is absolutely safe for the skin even with long-term use, as it is one of the safest preservatives in cosmetics .
The chemical formula of E265 Dehydroacetic Acid is C8H8O4.
E265 Dehydroacetic Acid is a white crystalline powder, being a derivative of pyrone.
E265 Dehydroacetic Acid is almost insoluble in water (solubility less than 0,1%), but is readily soluble in acetone, benzene and other organic solvents.
E265 Dehydroacetic Acid is a food additive and preservative.
E265 Dehydroacetic Acid is a white crystalline substance
E265 Dehydroacetic Acid is practically insoluble in water, highly soluble in acetone, benzene and other organic solvents.
E265 Dehydroacetic Acid does not irritate the skin and does not cause any chronic changes in the body of animals even when fed at a dose of 300 mg/kg for 7 weeks.
The residual content is not standardized, since food products are not treated with the preparation.
E265 Dehydroacetic Acid can be stored for a long time.
Biodegradable, E265 Dehydroacetic Acid does not pose any risk to the environment or health.
Although E265 Dehydroacetic Acid is authorized in organic products, it is prohibited in aerosol sprays.
The preservatives authorized in organic products are reproduced synthetically and in nature.
In addition to E265 Dehydroacetic Acid, other preservatives are authorized for natural and organic care, namely: Benzyl alcohol; Sodium benzoate; Sorbic acid; Potassium sorbate.
Preservatives such as E265 Dehydroacetic Acid provide protection for water-based products.
In addition, they prevent the formation of harmful microorganisms before E265 Dehydroacetic Acid is opened and during its use.
E265 Dehydroacetic Acid slows the growth of microbes such as fungi, bacteria, parasites or viruses.
Choosing a treatment containing E265 Dehydroacetic Acid helps reduce the risk of microbial development in treatments with an aqueous texture (creams, milks or shower gels).
USES and APPLICATIONS of E265 DEHYDROACETIC ACID:
Industrially, E265 Dehydroacetic Acid has several uses which include the following: as a fungicide and bactericide.
The sodium salt, sodium dehydroacetate, is often used in place of E265 Dehydroacetic Acid because of its greater solubility in water.
as a food preservative to prevent pickle bloating in squash and strawberries.
When used as a food additive, E265 Dehydroacetic Acid is referred to using the International Numbering System for Food Additives or E number 265.
E265 Dehydroacetic Acid is used as a plasticizer in synthetic resins.
E265 Dehydroacetic Acid is used as an antienzyme in toothpastes.
E265 Dehydroacetic Acid is used as a precursor for dimethyl-4-pyridones.
The compounds are synthesized when E265 Dehydroacetic Acid is exposed to aqueous solutions containing primary amines.
E265 Dehydroacetic Acid is used in cosmetics as a preservative for its fungicidal and bactericidal actions.
E265 Dehydroacetic Acid is used under the name E265 in food. As it is biodegradable, E265 Dehydroacetic Acid is used does not pose a problem for the environment, and the health risks remain quite low.
Note, however, that E265 Dehydroacetic Acid is used is prohibited in aerosol type sprays.
E265 Dehydroacetic Acid is authorized in Bio.
The Utility of E265 Dehydroacetic Acid is used
Derived from a pyrone, Dehydroacetic Acid is used as: Bactericidal; Fungicide ; pH Regulator.
E265 Dehydroacetic Acid is also used as a food additive under the number E265.
Preservatives such as E265 Dehydroacetic Acid ensure the protection of water-containing skincare products.
Moreover, they prevent the formation of harmful microorganisms before the skincare product is opened and during its period of use.
E265 Dehydroacetic Acid is used to slow down the growth of microbes such as fungi, bacteria, parasites, or viruses.
Whether organic or not, a skincare product deteriorates over time.
This degradation is evidenced by a change in color, smell, or texture.
Therefore, the law requires protection against any external microbial contamination, which necessitates the use of preservatives.
Choosing a treatment containing E265 Dehydroacetic Acid can reduce the risk of microbial growth in treatments with a watery texture (such as creams, milks, or even shower gels).
E265 Dehydroacetic Acid is a preservative used for its bactericidal and fungicidal properties.
E265 Dehydroacetic Acid is also a pH regulator.
In food, E265 Dehydroacetic Acid is mainly used to preserve pickles and strawberries.
E265 Dehydroacetic Acid is used to impregnate packaging materials to protect fruits and vegetables from rotting during storage.
In the United States, E265 Dehydroacetic Acid's use is limited to the treatment of vegetables of the squash family, as a preservative, within the limit of 65 ppm residual in the prepared vegetable.
E265 Dehydroacetic Acid also helps prevent rotting of fruits during storage, as well as preserving the microbiological cleanliness of cosmetics at the time of their use.
E265 Dehydroacetic Acid is used food preservative and in cosmetics as an antimicrobial preservative
E265 Dehydroacetic Acid is an organic compound classified as a derivative of pyrone, it is used in the food and cosmetic industry mainly as a fungicide and bactericide.
E265 Dehydroacetic Acid occurs naturally in the flowers of some plants, but it can also be produced synthetically.
E265 Dehydroacetic Acid is mainly used as a preservative, reduces the formation of microbes and bacteria, and extends the product's shelf life.
E265 Dehydroacetic Acid is a completely safe and non-sensitizing substance, it is among the safest natural preservatives in cosmetics.
Industrially, E265 Dehydroacetic Acid has a variety of uses, including: As a fungicide and bactericide.
The sodium salt (sodium dehydroacetate) is often used instead of E265 Dehydroacetic Acid because of its greater solubility in water.
E265 Dehydroacetic Acid is used as a plasticizer for synthetic resins.
E265 Dehydroacetic Acid is used as an anti-enzyme in toothpaste.
E265 Dehydroacetic Acid is used as a precursor of dimethyl-4-pyridone.
These compounds are synthesized when E265 Dehydroacetic Acid is exposed to aqueous solutions containing primary amines.
as food preservative
E265 Dehydroacetic Acid prevents pickles in pumpkins and strawberries from swelling.
Characteristics of food additive E265 Dehydroacetic Acid
Food additive E265 Dehydroacetic Acid is a synthetic preservative and is used in food production processes to extend their shelf life.
E265 Dehydroacetic Acid is used to impregnate packaging materials to protect fruits and vegetables from rotting during storage.
E265 Dehydroacetic Acid is used as a preservative in care, dehydroacetic acid has the function of preventing the proliferation of microorganisms.
E265 Dehydroacetic Acid is present in Baby cleaning wipes; Facial cleansing wipes; Makeup remover wipes; Eye contour care; Night face creams.
E265 Dehydroacetic Acid is also used as a food additive under the number E265.
-E265 Dehydroacetic Acid is used is present in 5.75% of cosmetics.
Moist toilet tissue (40%)
Face cleansing wipes (31.58%)
Cleansing wipes (26.32%)
Baby cleaning wipes (22.64%)
Night face cream (15.42%)
-Derived from a pyrone, E265 Dehydroacetic Acid is used as:
Bactericide;
Fungicide;
pH regulator.
WHAT IS E265 DEHYDROACETIC ACID AND WHAT IS E265 DEHYDROACETIC ACID USED FOR?
Preservatives are used to neutralize the proliferation of microorganisms in care products.
They are divided into two categories: naturally derived preservatives and synthetic preservatives.
E265 Dehydroacetic Acid is part of the first category.
E265 Dehydroacetic Acid respects the balance of bacterial flora.
FUNCTION AND FEATURES OF E265 DEHYDROACETIC ACID:
Fungicide preservative
FEATURES OF E265 DEHYDROACETIC ACID:
E265 Dehydroacetic Acid is a pale yellow powder with antibacterial and antifungal properties.
E265 Dehydroacetic Acid is slightly soluble in water.
WHERE CAN WE FIND E265 DEHYDROACETIC ACID?
E265 Dehydroacetic Acid is mainly present in cosmetics in wipes (make-up remover or cleansing, even in baby wipes!), but also in the composition of face creams and in eye contour care.
PREPARATION OF E265 DEHYDROACETIC ACID:
E265 Dehydroacetic Acid is prepared by the base-catalysed dimerization of diketene.
E265 Dehydroacetic Acid is commonly used organic bases include imidazole, DABCO, and pyridine.
FUNCTIONS OF E265 DEHYDROACETIC ACID:
Preservative :
E265 Dehydroacetic Acid is used inhibits the development of microorganisms in cosmetic products.
WHTA IS E265 DEHYDROACETIC ACID AND WHAT IS E265 DEHYDROACETIC ACID'S UTILITY?
Preservatives serve the role of neutralizing the proliferation of microorganisms in skincare products.
They are divided into two categories: preservatives derived from nature and synthetic preservatives.
E265 Dehydroacetic Acid is used falls into the first category.
E265 Dehydroacetic Acid is used respects the balance of bacterial flora.
Here's what you need to know about E265 Dehydroacetic Acid is used.
PHYSICAL and CHEMICAL PROPERTIES of E265 DEHYDROACETIC ACID:
Chemical formula: C8H8O4
Molar mass: 168.148 g·mol−1
Appearance: White crystals
Melting point: 109 °C; 228 °F; 382 K
Boiling point: 270 °C; 518 °F; 543 K
Appearance: Dehydroacetic Acid is a beige to light-yellow crystalline powder.
Odor: slight sourness
Molecular weight: 168.15 g/mol
Melting point: Approximately 109-111 °C (228-232°F)
Solubility of (25℃,g/100g): ethanol 3, glycol 1.7,
olive oil＜1.6, glycerin＜0.1, water＜0.1.
Its pH value of a saturated aqueous solution is 4.
Appearance: White to off-white crystalline powder
Boiling point,℃: 269.9
Melting point,℃: 109.00 ~ 111.00
Flash point,℃: 157
Refractive index: 1.4611
Solubility: Slightly soluble in ethanol and cold water
Specification
Items: Specification
Appearance: White to off-white crystalline powder
Assay, %: 98.00~100.5 0 (On Dried Substance)
Melting Point,℃: 109.00~111.00
Loss on Drying, %: ≤1.00
Residue on Ignition, %: ≤0.10
Lead(as Pb), mg/kg: ≤0.50
IUPAC Name: 3-acetyl-6-methylpyran-2,4-dione
InChI: InChI=1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3
InChI Key: PGRHXDWITVMQBC-UHFFFAOYSA-N
Canonical SMILES: CC1=CC(=O)C(C(=O)O1)C(=O)C
Molecular Formula: C8H8O4
DSSTOX Substance ID: DTXSID6020014
Molecular Weight: 168.15 g/mol
Physical Description: Dry Powder, Colorless odorless solid;
Highly reactive;
White to cream-colored solid;
White odorless powder;
Boiling Point: 269.9 °C @ 760 MM HG
Flash Point: 157 °C; 315 °F (OPEN CUP)
Solubility: (WT/WT) 22% IN ACETONE, 18% IN BENZENE, 5% IN METHANOL,
3% IN USP ETHANOL, 3% IN CARBON TETRACHLORIDE, 5% IN ETHER, 0.7% IN N-HEPTANE,
LESS THAN 0.1% IN GLYCEROL, 1.6% IN OLIVE OIL, 1.7% IN PROPYLENE GLYCOL,
LESS THAN 0.1% IN WATER AT 25 °C, SOL IN ALKALIES, water solubility = 690 mg/l @ 25 °C
Vapor Density: 5.8 (AIR= 1)
Vapor Pressure: 1.9 MM HG AT 100 °C
Color/Form: NEEDLES FROM WATER,
RHOMBIC NEEDLES OR PRISMS FROM ALCOHOL,
WHITE TO CREAM CRYSTALLINE POWDER,
COLORLESS POWDER, Colorless crystals
CAS RN: 520-45-6, 16807-48-0
Melting Point: 109-111 °C (SUBLIMES)
Chemical Properties:
Boiling Point: 269.9°C, 270°C (lit.), 270 °C; 518 °F; 543 K
Melting Point: 109-111°C, 111-113°C (lit.), 109 °C; 228 °F; 382 K
pH: 4-6, 4 (2g/l, H2O, 20℃)
Solubility: Slightly soluble in water, 2g/l,
Water Solubility: 500mg/L at 25℃
Viscosity: Low
Chemical formula: C8H8O4
Molar mass: 168.148 g·mol−1, 168.15 g·mol−1
Appearance: White crystals, Light yellow or cream,
Fine Crystalline Powder
Density: 1.1816 (rough estimate)
Vapor pressure: 0.001 hPa (20 °C)
Refractive index: 1.4611 (estimate)
Flash point: 157°C
Storage temp.: Store below +30°C
Form: Fine Crystalline Powder
pKa: 5.53±0.40 (Predicted)
Odor: Almost odorless, slightly bitter-sweet taste
Stability: Stable, Incompatible with oxidizing agents,
bases, reducing agents
LogP: 0.78 at 20℃
FDA 21 CFR: 172.130, 175.105
Identifiers:
CBNumber: CB0139753
Molecular Formula: C8H8O4
Molecular Weight: 168.15 g·mol−1
MDL Number: MFCD00066709
MOL File: 520-45-6.mol
InChIKey: PGRHXDWITVMQBC-UHFFFAOYSA-N
FDA UNII: 2KAG279R6R
References:
Merck: 14,2865
BRN: 6129
CAS DataBase Reference: 520-45-6 (CAS DataBase Reference)
EWG's Food Scores: 1
NIST Chemistry Reference: Dehydroacetic Acid (520-45-6)
EPA Substance Registry System: 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione (520-45-6)
Substances Added to Food (formerly EAFUS): DEHYDROACETIC ACID
FIRST AID MEASURES of E265 DEHYDROACETIC ACID:
-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 E265 DEHYDROACETIC ACID:
-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 E265 DEHYDROACETIC ACID:
-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 E265 DEHYDROACETIC ACID:
-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 E265 DEHYDROACETIC ACID:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of E265 DEHYDROACETIC ACID:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature) .
-Possibility of hazardous reactions:
No data available
