3-Bromothiophene
Also known as: 3-bromo-thiophene, 3-thienyl bromide, beta-Bromothiophene, thien-3-yl bromide, Thiophene,3-bromo, β-bromothiophene, EINECS 212-821-3, MFCD00005417, TIMTEC-BB SBB003930, TIMTEC-BB SBB003931
3-Bromothiophene (CAS 872-31-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3BrS and a molecular weight of 163.036 g/mol. Key properties include a melting point of -10ºC, a boiling point of 158.4±13.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 56.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H310. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 872-31-1
- Jingsj CID
- J-1993011-1
- Molecular Formula
- C4H3BrS
- Molecular Weight
- 163.036 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -10ºC |
|---|---|
| Boiling Point | 158.4±13.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 56.7±0.0 °C |
| Exact Mass | 161.913879 |
| PSA | 28.24000 |
| LogP | 2.62 |
| Vapor Pressure | 3.4±0.3 mmHg at 25°C |
| Refractive Index | 1.595 |
| Additional Property | IMMISCIBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H301 — Toxic if swallowed
- H310
- H330 — Fatal if inhaled
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H411 — Toxic to aquatic life with long lasting effects
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 3-Bromothiophene?
The CAS number of 3-Bromothiophene is 872-31-1.
What are the molecular formula and molecular weight of 3-Bromothiophene?
3-Bromothiophene has molecular formula C4H3BrS and molecular weight 163.036 g/mol.
Is 3-Bromothiophene hazardous?
3-Bromothiophene has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H310.
What are the upstream and downstream products of 3-Bromothiophene?
For 3-Bromothiophene, Upstream Products: 2,3,5-Tribromothiophene, 2-Bromothiophene, 2,3-Dibromothiophene; Downstream Products: 3,3'-Bithiophene, Biphenyl, 3-Phenylthiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Bromothiophene (CAS 872-31-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993011-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.