5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride
5-[1-甲基-5-(三氟甲基)-1H-吡唑-3-基]噻吩-2-磺酰氯
Also known as: 2-[1-methyl-5-(trifluoromethyl)pyrazol-3-yl]thiophene-5-sulfonyl chloride, 5-(1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)thiophene-2-sulfonyl chloride, 2-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-5-sulfonyl chloride, 2-[1-methyl-5-(trifluoromethyl)pyrazol-3-yl]thiophene-5-sulphonyl chloride
5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride (CAS 166964-31-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6ClF3N2O2S2 and a molecular weight of 330.73400 g/mol. It is also known as 2-[1-methyl-5-(trifluoromethyl)pyrazol-3-yl]thiophene-5-sulfonyl chloride, 5-(1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl)thiophene-2-sulfonyl chloride and 2-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-5-sulfonyl chloride. Key properties include a melting point of 77-80ºC and a boiling point of 72.2ºC at 760mmHg. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 166964-31-4
- Jingsj CID
- J-24110-8
- Molecular Formula
- C9H6ClF3N2O2S2
- Chinese Name
- 5-[1-甲基-5-(三氟甲基)-1H-吡唑-3-基]噻吩-2-磺酰氯
- Molecular Weight
- 330.73400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 77-80ºC |
|---|---|
| Boiling Point | 72.2ºC at 760mmHg |
Frequently Asked Questions
What is the CAS number of 5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride?
The CAS number of 5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride is 166964-31-4.
What are the molecular formula and molecular weight of 5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride?
5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride has molecular formula C9H6ClF3N2O2S2 and molecular weight 330.73400 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]thiophene-2-sulfonyl chloride (CAS 166964-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24110-8 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.