MF:                C₅H₈N₂

MW:               96.13

CAS No.:       67-51-6

EINECS:        200-657-5

Physical and Chemical Properties

• Melting Point: 105–108 °C (lit.)

• Boiling Point: 218 °C (lit.)

• Density: 0.884 g/cm³

• Refractive Index: 1.4739 (estimate)

• Flash Point: 210 °C

• Solubility: Soluble in methanol (0.1 g/mL, clear solution)

Product Overview

3,5-Dimethylpyrazole is a pyrazole heterocyclic compound with basic and nucleophilic properties. It is widely used in pharmaceutical chemistry, fine chemicals, and materials science research.

The 3,5-dimethyl substitution modulates the reactivity of the pyrazole ring. Under basic conditions, it can undergo N-alkylation with alkyl halides. Due to the high electron density of the pyrazole ring, it can also participate in electrophilic aromatic substitution reactions under appropriate conditions.

Applications

• Pharmaceutical and agrochemical intermediates:
  Used in the synthesis of pyrazole derivatives

• Fine chemical raw materials:
  Applied in coatings, paints, and related chemical systems

• Functional additives:
  Used as a cyanate ester blocking agent to improve material stability

• Materials science research:
  Used in the development of organic functional materials (research use)