5-(thiophen-2-yl)-3-(trifluoromethyl)-1H-pyrazole

3-(2-噻吩)-5-(三氟甲基)-1H-吡唑

Also known as: 3-(thiophen-2-yl)-5-(trifluoromethyl)-1H-pyrazole, 3-(thien-2-yl)-5-trifluoromethyl-1H-pyrazole, 5-trifluoromethyl-3-(2-thienyl)-1H-pyrazole, 5-trifluoromethyl-3-(thien-2-yl)pyrazole, 2-(5-(trifluoromethyl)pyrazol-3-yl)thiophene, 3(5)-trifluoromethyl-5(3)-(2-thienyl)pyrazole, 3(5)-(2-thienyl)-5(3)-trifluoromethylpyrazole

5-(thiophen-2-yl)-3-(trifluoromethyl)-1H-pyrazole (CAS 128228-96-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5F3N2S and a molecular weight of 218.19900 g/mol. It is also known as 3-(thiophen-2-yl)-5-(trifluoromethyl)-1H-pyrazole, 3-(thien-2-yl)-5-trifluoromethyl-1H-pyrazole and 5-trifluoromethyl-3-(2-thienyl)-1H-pyrazole. Key properties include a melting point of 120-122ºC, a boiling point of 335.7ºC at 760mmHg, a density of 1.461g/cm3 and a flash point of 156.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

128228-96-6

Jingsj CID

J-1488784-0

Molecular Formula

C₈H₅F₃N₂S

Chinese Name

3-(2-噻吩)-5-(三氟甲基)-1H-吡唑

Molecular Weight

218.19900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026