5-Chlorothiophene-2-sulfonyl chloride
Also known as: 5-Chloro-2-thiophenesulfonyl chloride, 2-Chloro-5-(chlorosulfonyl)thiophene, 5-Chloro-2-thienylsulfonyl chloride, 5-Chlorothiophene-2-sulphonyl chloride, MFCD00051667
5-Chlorothiophene-2-sulfonyl chloride (CAS 2766-74-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2O2S2 and a molecular weight of 217.094 g/mol. Key properties include a melting point of 25-28°C, a boiling point of 297.7±25.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 133.8±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2766-74-7
- Jingsj CID
- J-26059-3
- Molecular Formula
- C4H2Cl2O2S2
- Molecular Weight
- 217.094 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 25-28°C |
|---|---|
| Boiling Point | 297.7±25.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 133.8±23.2 °C |
| Exact Mass | 215.887329 |
| PSA | 70.76000 |
| LogP | 2.60 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.596 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 5-Chlorothiophene-2-sulfonyl chloride?
The CAS number of 5-Chlorothiophene-2-sulfonyl chloride is 2766-74-7.
What are the molecular formula and molecular weight of 5-Chlorothiophene-2-sulfonyl chloride?
5-Chlorothiophene-2-sulfonyl chloride has molecular formula C4H2Cl2O2S2 and molecular weight 217.094 g/mol.
Is 5-Chlorothiophene-2-sulfonyl chloride hazardous?
5-Chlorothiophene-2-sulfonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 5-Chlorothiophene-2-sulfonyl chloride?
For 5-Chlorothiophene-2-sulfonyl chloride, Upstream Products: 2-Chlorothiophene; Downstream Products: 5-Chloro-4-nitrothiophene-2-sulfonyl chloride, 5-Chlorothiophene-2-sulfonamide, N-tert-Butyl-5-chlorothiophene-2-sulfonamide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Chlorothiophene-2-sulfonyl chloride (CAS 2766-74-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26059-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.