5-Chloro-2(3H)-thiophenone
5-氯-2(3H)-噻吩酮
5-Chloro-2(3H)-thiophenone (CAS 19991-71-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3ClOS and a molecular weight of 134.58 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 19991-71-0
- Jingsj CID
- J-1553767-4
- Molecular Formula
- C4H3ClOS
- Chinese Name
- 5-氯-2(3H)-噻吩酮
- Molecular Weight
- 134.58 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quoteFrequently Asked Questions
What is the CAS number of 5-Chloro-2(3H)-thiophenone?
The CAS number of 5-Chloro-2(3H)-thiophenone is 19991-71-0.
What are the molecular formula and molecular weight of 5-Chloro-2(3H)-thiophenone?
5-Chloro-2(3H)-thiophenone has molecular formula C4H3ClOS and molecular weight 134.58 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chloro-2(3H)-thiophenone (CAS 19991-71-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1553767-4 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.