2,3-Dichlorothiophene
Also known as: 2,3-Dichlorothiophene, MFCD00043890, 2,3-Dichlor-thiophen, 2,3-Dichloro-thiophene, 4,5-Dichlorothiophene, Thiophene, 2,3-dichloro-
2,3-Dichlorothiophene (CAS 17249-79-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2S and a molecular weight of 153.030 g/mol. Key properties include a melting point of -26ºC, a boiling point of 170.7±20.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 68.9±8.5 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H318 — Causes serious eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17249-79-5
- Jingsj CID
- J-1525350-6
- Molecular Formula
- C4H2Cl2S
- Molecular Weight
- 153.030 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -26ºC |
|---|---|
| Boiling Point | 170.7±20.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 68.9±8.5 °C |
| Exact Mass | 151.925430 |
| PSA | 28.24000 |
| LogP | 3.07 |
| Vapor Pressure | 1.9±0.3 mmHg at 25°C |
| Refractive Index | 1.584 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H318 — Causes serious eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
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 2,3-Dichlorothiophene?
The CAS number of 2,3-Dichlorothiophene is 17249-79-5.
What are the molecular formula and molecular weight of 2,3-Dichlorothiophene?
2,3-Dichlorothiophene has molecular formula C4H2Cl2S and molecular weight 153.030 g/mol.
Is 2,3-Dichlorothiophene hazardous?
2,3-Dichlorothiophene has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H318 — Causes serious eye damage; H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of 2,3-Dichlorothiophene?
For 2,3-Dichlorothiophene, Upstream Products: 3-Chlorothiophene, 4,5-Dichlorothiophene-2-carboxylic acid; Downstream Products: 2-Acetyl-4,5-dichlorothiophene, 3-Chlorothiophene-2-carboxylic acid, 4,5-Dichlorothiophene-2-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3-Dichlorothiophene (CAS 17249-79-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525350-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.