![Molecular structure of 5-Bromobenzo[b]thiophene (CAS 4923-87-9)](/images/chem_structures_svg/266/4923-87-9.svg)
5-Bromobenzo[b]thiophene
Also known as: 5-bromo-1-benzothiophene, 5-bromobenzo[b]thiophene, 5-bromobenzothiophene, 5-bromothianaphthene, 5-bromo-benzo[b]thiophene, benzo[b]thiophene, 5-bromo-
5-Bromobenzo[b]thiophene (CAS 4923-87-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5BrS and a molecular weight of 213.094 g/mol. Key properties include a melting point of 46ºC, a boiling point of 284.7±13.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 126.0±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4923-87-9
- Jingsj CID
- J-1518039-9
- Molecular Formula
- C8H5BrS
- Molecular Weight
- 213.094 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 46ºC |
|---|---|
| Boiling Point | 284.7±13.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 126.0±19.8 °C |
| Exact Mass | 211.929520 |
| PSA | 28.24000 |
| LogP | 5.15 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.704 |
| Storage Conditions | Room temperature. |
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-Bromobenzo[b]thiophene?
The CAS number of 5-Bromobenzo[b]thiophene is 4923-87-9.
What are the molecular formula and molecular weight of 5-Bromobenzo[b]thiophene?
5-Bromobenzo[b]thiophene has molecular formula C8H5BrS and molecular weight 213.094 g/mol.
What are the upstream and downstream products of 5-Bromobenzo[b]thiophene?
For 5-Bromobenzo[b]thiophene, Upstream Products: 1-bromo-4-[(2,2-diethoxyethyl)thio]benzene, (4-Bromophenyl)(2,2-dimethoxyethyl)sulfane, 4-Bromothiophenol; Downstream Products: 2-(Benzo[b]thiophen-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 5-Methoxy-1-benzothiophene, 1-Benzothiophen-5-amine.
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-Bromobenzo[b]thiophene (CAS 4923-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518039-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.