3,5-Dimethyl-1H-pyrazole

• Catalog No.: A10157
• CAS Number: 67-51-6
• M. F.: C5H8N2
• M. W.: 96.13042
• Purity: 99%

SYNONYMS

• Title: 3,5-二甲基-1H-吡唑
• IUPAC name: 3,5-dimethyl-1H-pyrazole
• IUPAC Traditional name: 1H-pyrazole, 3,5-dimethyl-

DATABASE IDS

• CAS Number: 67-51-6
• Beilstein Number: 106325
• EC Number: 200-657-5
• MDL Number: MFCD00005243

PROPERTIES

• Purity: 99%
• Boiling Point: 218°C
• Melting Point: 105-108°C
• GHS Hazard statements: H302-H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38
• RTECS: UQ6477600
• Safety Statements: 26-37
• TSCA Listed: 是

REFERENCES

• The combination with Chromium(VI) oxide, 12522 is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds in very high yields: Tetrahedron Lett., 4499 (1973). With Pyridinium chlorochromate, A11752, allylic alcohols are oxidized selectively in the presence of secondary alcohols: J. Org. Chem., 48, 4766 (1983).
• Reaction of pyrazoles with malonic esters gives a family of cross-conjugated monomeric betaines: Synthesis, 629 (1989):