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3-bromobenzothiophene-2-carboxylic acid

Also known as: 3-Bromo-1-benzothiophene-2-carboxylic acid, Benzo[b]thiophene-2-carboxylic acid, 3-bromo-, 3-Bromobenzo[b]thiophene-2-carboxylic acid, 3-Brom-benzo<b>thiophen-2-carbonsaeure, MFCD00466543

3-bromobenzothiophene-2-carboxylic acid (CAS 29174-66-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5BrO2S and a molecular weight of 257.10400 g/mol. Key properties include a melting point of 275-279ºC(lit.) and a boiling point of 275-279 °C (lit.). It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
29174-66-1
Jingsj CID
J-18148-6
Molecular Formula
C9H5BrO2S
Molecular Weight
257.10400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point275-279ºC(lit.)
Boiling Point275-279 °C (lit.)
Exact Mass255.91900
PSA65.54000
LogP3.36200

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction

Frequently Asked Questions

What is the CAS number of 3-bromobenzothiophene-2-carboxylic acid?

The CAS number of 3-bromobenzothiophene-2-carboxylic acid is 29174-66-1.

What are the molecular formula and molecular weight of 3-bromobenzothiophene-2-carboxylic acid?

3-bromobenzothiophene-2-carboxylic acid has molecular formula C9H5BrO2S and molecular weight 257.10400 g/mol.

Is 3-bromobenzothiophene-2-carboxylic acid hazardous?

3-bromobenzothiophene-2-carboxylic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.

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-bromobenzothiophene-2-carboxylic acid (CAS 29174-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18148-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.