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Benzo[b]thiophene-7-carboxylic acid

Also known as: 1-Benzothiophene-7-carboxylic acid, 7-Carboxybenzo[b]thiophene, Benzo[b]thiophene-7-carboxylic acid 97%, Benzo[b]thiophen-7-carbonsaeure

Benzo[b]thiophene-7-carboxylic acid (CAS 10134-98-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6O2S and a molecular weight of 178.208 g/mol. Key properties include a melting point of 176.5ºC, a boiling point of 376.2±15.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 181.3±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10134-98-2
Jingsj CID
J-1439861-9
Molecular Formula
C9H6O2S
Molecular Weight
178.208 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point176.5ºC
Boiling Point376.2±15.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point181.3±20.4 °C
Exact Mass178.008850
PSA65.54000
LogP4.06
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.717

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 Benzo[b]thiophene-7-carboxylic acid?

The CAS number of Benzo[b]thiophene-7-carboxylic acid is 10134-98-2.

What are the molecular formula and molecular weight of Benzo[b]thiophene-7-carboxylic acid?

Benzo[b]thiophene-7-carboxylic acid has molecular formula C9H6O2S and molecular weight 178.208 g/mol.

What are the upstream and downstream products of Benzo[b]thiophene-7-carboxylic acid?

For Benzo[b]thiophene-7-carboxylic acid, Upstream Products: Ethyl benzo[b]thiophene-7-carboxylate, Thiosalicylic acid, Benzo[b]thiophene-7-carbonitrile; Downstream Products: Benzo[b]thiophene-7-carbonyl chloride.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Benzo[b]thiophene-7-carboxylic acid (CAS 10134-98-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439861-9 (accessed 2026-11-09).

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