2-Chlorothiophene
Also known as: 2-Thienyl chloride, Thienyl chloride, 2-Chloro thiophene, 2-Chlorothiphene, Chlorothiophene, Thiophene, 2-chloro-, thien-2-yl chloride, 2-thiophenyl chloride
2-Chlorothiophene (CAS 96-43-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3ClS and a molecular weight of 118.585 g/mol. Key properties include a melting point of -71.9 °C, a boiling point of 128.3±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 22.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 96-43-5
- Jingsj CID
- J-39677-2
- Molecular Formula
- C4H3ClS
- Molecular Weight
- 118.585 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -71.9 °C |
|---|---|
| Boiling Point | 128.3±0.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 22.8±0.0 °C |
| Exact Mass | 117.964401 |
| PSA | 28.24000 |
| LogP | 2.54 |
| Vapor Pressure | 13.0±0.2 mmHg at 25°C |
| Refractive Index | 1.564 |
| Additional Property | INSOLUBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 29349990 |
|---|
Frequently Asked Questions
What is the CAS number of 2-Chlorothiophene?
The CAS number of 2-Chlorothiophene is 96-43-5.
What are the molecular formula and molecular weight of 2-Chlorothiophene?
2-Chlorothiophene has molecular formula C4H3ClS and molecular weight 118.585 g/mol.
Is 2-Chlorothiophene hazardous?
2-Chlorothiophene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2-Chlorothiophene?
For 2-Chlorothiophene, Upstream Products: 2-Bromo-5-chlorothiophene, 2,5-Dichlorothiophene, 1,2-dichloroethylene; Downstream Products: 6,6'-Dimethyl-2,2'-bipyridine, 2-Thiophenecarboxylic acid, Methyl thiophene-2-carboxylate.
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-Chlorothiophene (CAS 96-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39677-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.