5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid

5-氯-1-甲基-3-(三氟甲基)-1H-吡唑-4-羧酸

Also known as: 1H-Pyrazole-4-carboxylic acid, 5-chloro-1-methyl-3-(trifluoromethyl)-, 4-Carboxy-5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole, 5-Chloro-1-methyl-3-(trifluoromethyl)pyrazole-4-carboxylic acid, 5-chloro-1-methyl-3-trifluoromethylpyrazole-4-carboxylic acid, MFCD00215443

5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 128455-63-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4ClF3N2O2 and a molecular weight of 228.556 g/mol. It is also known as 1H-Pyrazole-4-carboxylic acid, 5-chloro-1-methyl-3-(trifluoromethyl)-, 4-Carboxy-5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole and 5-Chloro-1-methyl-3-(trifluoromethyl)pyrazole-4-carboxylic acid. Key properties include a melting point of 201ºC, a boiling point of 284.4±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 125.8±27.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

128455-63-0

Jingsj CID

J-1170260-7

Molecular Formula

C₆H₄ClF₃N₂O₂

Chinese Name

5-氯-1-甲基-3-(三氟甲基)-1H-吡唑-4-羧酸

Molecular Weight

228.556 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026