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3,5-Dimethylpyrazole is a heterocyclic organic compound belonging to the pyrazole family, characterized by a five-membered ring containing two nitrogen atoms.
3,5-Dimethylpyrazole is widely used as a chemical intermediate, corrosion inhibitor, and plant protection agent.
3,5-Dimethylpyrazole is known for its stability, electron-rich structure, and ability to form complexes with metal ions.
CAS Number: 67-51-6
EC Number: 200-653-1
Molecular Formula: C5H8N2
Molecular Weight: 96.13 g/mol
Synonyms: 3,5-Dimethyl-1H-pyrazole, Dimethylpyrazole, Pyrazole, 3,5-Dimethyl, DMP, Pyrazole Derivative, Pyrazole with Methyl Substituents, Dimethyl Pyrazole Intermediate, DMP Monomer, Dimethylpyrazole Chemical
APPLICATIONS
3,5-Dimethylpyrazole is used in agriculture as a nitrification inhibitor to reduce nitrate leaching and improve nitrogen use efficiency in fertilizers.
3,5-Dimethylpyrazole is added to ammonium-based fertilizers to slow the microbial conversion of ammonium to nitrate.
3,5-Dimethylpyrazole contributes to sustainable farming by enhancing crop uptake and reducing environmental impact.
3,5-Dimethylpyrazole is used in the production of corrosion inhibitors for water systems and metalworking fluids.
3,5-Dimethylpyrazole forms protective complexes with metal surfaces to prevent oxidation and degradation.
3,5-Dimethylpyrazole is employed in closed-loop cooling systems and antifreeze formulations.
3,5-Dimethylpyrazole is used as a blocking agent in isocyanate-based systems to control reactivity.
3,5-Dimethylpyrazole is applied in polyurethane formulations to delay cross-linking reactions.
3,5-Dimethylpyrazole is used in powder coating systems to improve shelf stability.
3,5-Dimethylpyrazole is used in heat-activated curing systems for industrial coatings.
3,5-Dimethylpyrazole is incorporated into adhesives to enhance working time.
3,5-Dimethylpyrazole is used in epoxy systems as a latency modifier.
3,5-Dimethylpyrazole is employed in high-performance paints to manage cure profiles.
3,5-Dimethylpyrazole is used in elastomeric coatings for thermal insulation materials.
3,5-Dimethylpyrazole is used in construction sealants requiring controlled hardening.
3,5-Dimethylpyrazole is added to reactive systems for delayed reactivity at ambient conditions.
3,5-Dimethylpyrazole is used in automotive coatings that require high temperature curing.
3,5-Dimethylpyrazole is used in flooring adhesives to reduce premature gelation.
3,5-Dimethylpyrazole is included in sealant formulations for better storage stability.
3,5-Dimethylpyrazole is used in the production of prepolymers for improved processability.
3,5-Dimethylpyrazole is used in weather-resistant exterior coatings.
3,5-Dimethylpyrazole is used in urethane foams for insulation boards.
3,5-Dimethylpyrazole is incorporated into adhesive tapes for extended open time.
3,5-Dimethylpyrazole is used in foamed adhesives to balance expansion and cure.
3,5-Dimethylpyrazole is used in two-component PU systems for thermal insulation.
3,5-Dimethylpyrazole is used in protective coatings for infrastructure applications.
3,5-Dimethylpyrazole is used in chemical grouting systems.
3,5-Dimethylpyrazole is used in controlled-release agricultural coatings.
3,5-Dimethylpyrazole is used in encapsulated fertilizer coatings for slow nutrient release.
3,5-Dimethylpyrazole is applied in wood coatings for moisture protection.
3,5-Dimethylpyrazole is used in hybrid epoxy-urethane resins.
3,5-Dimethylpyrazole is used in corrosion-resistant primers for metal surfaces.
3,5-Dimethylpyrazole is used in synthetic leather coatings.
3,5-Dimethylpyrazole is included in UV-curable coating formulations.
3,5-Dimethylpyrazole is used in the development of reactive hot-melt adhesives.
3,5-Dimethylpyrazole is used in pre-coated metal roofing systems.
3,5-Dimethylpyrazole is used in thermoset composites for sports equipment.
3,5-Dimethylpyrazole is used in aerospace sealants and coatings.
3,5-Dimethylpyrazole is used in moisture-resistant undercoats.
3,5-Dimethylpyrazole is employed in marine coatings for hull protection.
3,5-Dimethylpyrazole is used in adhesives for laminated glass.
3,5-Dimethylpyrazole is used in waterborne PU dispersions for controlled reactivity.
3,5-Dimethylpyrazole is used in pigment dispersions with blocked isocyanates.
3,5-Dimethylpyrazole is used in protective coatings for pipelines.
3,5-Dimethylpyrazole is included in high-solids coatings to manage pot life.
3,5-Dimethylpyrazole is used in reactive coatings for printed circuit boards.
3,5-Dimethylpyrazole is used in damping materials for automotive NVH (noise, vibration, harshness) applications.
3,5-Dimethylpyrazole is used in fire-retardant intumescent coatings.
3,5-Dimethylpyrazole is used in textile coatings requiring elasticity and durability.
3,5-Dimethylpyrazole is used in sound insulation foams.
3,5-Dimethylpyrazole is used in tire sealants for chemical stability.
3,5-Dimethylpyrazole is used in high-temperature resistant coatings.
3,5-Dimethylpyrazole is used in railcar interior coatings.
3,5-Dimethylpyrazole is used in synthetic flooring materials.
3,5-Dimethylpyrazole is used in automotive acoustic pads.
3,5-Dimethylpyrazole is used in composite resins for wind turbine blades.
3,5-Dimethylpyrazole is utilized as an intermediate in the synthesis of pharmaceuticals and agrochemicals.
3,5-Dimethylpyrazole is a precursor for various substituted pyrazoles and heterocyclic compounds.
3,5-Dimethylpyrazole is used in research and development for designing enzyme inhibitors and receptor ligands.
3,5-Dimethylpyrazole is found in polymer chemistry as a building block in specialty resins and monomers.
3,5-Dimethylpyrazole is used in catalyst formulations for isocyanate reactions in polyurethane foams.
3,5-Dimethylpyrazole acts as a stabilizer and reaction modulator in industrial syntheses.
3,5-Dimethylpyrazole is applied in analytical chemistry as a chelating agent for metal ions in solution.
3,5-Dimethylpyrazole is used in colorimetric assays and coordination chemistry studies.
3,5-Dimethylpyrazole enhances selectivity and sensitivity in spectrophotometric analysis.
DESCRIPTION
3,5-Dimethylpyrazole appears as a white to light beige crystalline solid with a faint odor.
3,5-Dimethylpyrazole is a symmetrical pyrazole derivative with methyl groups at positions 3 and 5 of the ring.
3,5-Dimethylpyrazole is soluble in most polar organic solvents, such as ethanol, methanol, and acetone.
The chemical structure of 3,5-Dimethylpyrazole provides electron density that facilitates interactions with metal ions and electrophilic species.
3,5-Dimethylpyrazole is thermally stable under standard processing conditions.
3,5-Dimethylpyrazole exhibits weak basicity due to its nitrogen atoms, allowing for hydrogen bonding and complex formation.
3,5-Dimethylpyrazole is biodegradable under environmental conditions and considered low in toxicity for agricultural use.
3,5-Dimethylpyrazole is compatible with various formulation additives used in fertilizers and coatings.
3,5-Dimethylpyrazole offers a favorable balance between performance and environmental safety.
PROPERTIES
Common Name: 3,5-Dimethylpyrazole
Chemical Formula: C5H8N2
Molecular Weight: 96.13 g/mol
Appearance: White to beige crystalline solid
Odor: Faint or slightly aromatic odor
Density: ~1.02 g/cm³
Melting Point: 108–110°C
Boiling Point: ~180°C (at reduced pressure)
Solubility: Soluble in ethanol, acetone, methanol; slightly soluble in water
Vapor Pressure: Low at ambient temperature
pH: Slightly basic (in aqueous solution)
Flash Point: >80°C (closed cup)
Stability: Stable under normal conditions; avoid strong oxidizers
Shelf Life: 12–24 months when stored properly
Storage Temperature: 5–30°C in a dry, sealed container
FIRST AID
Inhalation:
Move person to fresh air and keep at rest.
Seek medical attention if respiratory symptoms develop.
Skin Contact:
Wash with soap and water.
Remove contaminated clothing and wash before reuse.
Get medical attention if irritation occurs.
Eye Contact:
Flush with water for 10–15 minutes while holding eyelids open.
Remove contact lenses if present and continue rinsing.
Consult an eye specialist if symptoms persist.
Ingestion:
Rinse mouth thoroughly with water.
Do not induce vomiting unless directed by medical personnel.
Seek medical advice if large quantities are swallowed.
Note to Physicians:
Treat symptomatically.
No specific antidote is known.
Provide supportive care as needed.
HANDLING AND STORAGE
Handling:
Use appropriate personal protective equipment (PPE) including gloves and goggles.
Avoid contact with skin, eyes, and clothing.
Use in a well-ventilated area or under a chemical fume hood.
Ventilation:
Provide sufficient exhaust ventilation to control vapor and dust exposure.
Avoid formation of aerosols or dust in closed environments.
Storage:
Store in tightly closed containers in a cool, dry, and well-ventilated area.
Keep away from heat, open flame, and incompatible substances.
Label storage containers clearly and store away from oxidizers.
Spill and Leak Procedures:
Sweep up or absorb with inert material.
Dispose of waste according to local environmental regulations.
Use protective equipment and avoid environmental contamination.
Handling Precautions:
Practice good industrial hygiene.
Wash hands and face thoroughly after handling.
Avoid release into drains, soil, or surface water.
