2,5-dichlorothiophene-3-sulfonyl chloride
2,5-二氯噻吩-3-磺酰氯
Also known as: 2,5-dichlorothiophene-3-sulphonyl chloride, 2,5-dichloro-3-thiophenesulfonyl chloride, 2,5-dichloro-3-thienylsulfonyl chloride, 2,5-dichlorothiophene-3-sulfonyl chloride, MFCD00051665
2,5-dichlorothiophene-3-sulfonyl chloride (CAS 56946-83-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4HCl3O2S2 and a molecular weight of 251.53900 g/mol. It is also known as 2,5-dichlorothiophene-3-sulphonyl chloride, 2,5-dichloro-3-thiophenesulfonyl chloride and 2,5-dichloro-3-thienylsulfonyl chloride. Key properties include a boiling point of 256-257 °C(lit.), a density of 1.697 g/mL at 25 °C(lit.) and a flash point of >230 °F. 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.
- 56946-83-9
- Jingsj CID
- J-34164-8
- Molecular Formula
- C4HCl3O2S2
- Chinese Name
- 2,5-二氯噻吩-3-磺酰氯
- Molecular Weight
- 251.53900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 256-257 °C(lit.) |
|---|---|
| Density | 1.697 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Exact Mass | 249.84800 |
| PSA | 70.76000 |
| LogP | 4.06320 |
| Refractive Index | n20/D 1.595(lit.) |
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 2,5-dichlorothiophene-3-sulfonyl chloride?
The CAS number of 2,5-dichlorothiophene-3-sulfonyl chloride is 56946-83-9.
What are the molecular formula and molecular weight of 2,5-dichlorothiophene-3-sulfonyl chloride?
2,5-dichlorothiophene-3-sulfonyl chloride has molecular formula C4HCl3O2S2 and molecular weight 251.53900 g/mol.
Is 2,5-dichlorothiophene-3-sulfonyl chloride hazardous?
2,5-dichlorothiophene-3-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 2,5-dichlorothiophene-3-sulfonyl chloride?
For 2,5-dichlorothiophene-3-sulfonyl chloride, Upstream Products: 2,5-Dichlorothiophene; Downstream Products: 2,5-Dichlorothiophene-3-sulfonamide.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-dichlorothiophene-3-sulfonyl chloride (CAS 56946-83-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34164-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.