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4-Methoxybenzo[b]thiophene-2-carboxylic acid

4-甲氧基苯并[b]噻吩-2-羧酸

Also known as: 4-Methoxy-1-benzothiophene-2-carboxylic acid, 4-Methoxybenzothiophene-2-carboxylic acid, Benzo[b]thiophene-2-carboxylic acid, 4-methoxy-, Brexpiprazole Impurity 127

4-Methoxybenzo[b]thiophene-2-carboxylic acid (CAS 476199-14-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8O3S and a molecular weight of 208.234 g/mol. It is also known as 4-Methoxy-1-benzothiophene-2-carboxylic acid, 4-Methoxybenzothiophene-2-carboxylic acid and Benzo[b]thiophene-2-carboxylic acid, 4-methoxy-. Key properties include a boiling point of 410.0±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 201.8±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
476199-14-1
Jingsj CID
J-1498935-9
Molecular Formula
C10H8O3S
Chinese Name
4-甲氧基苯并[b]噻吩-2-羧酸
Molecular Weight
208.234 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point410.0±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point201.8±23.2 °C

Frequently Asked Questions

What is the CAS number of 4-Methoxybenzo[b]thiophene-2-carboxylic acid?

The CAS number of 4-Methoxybenzo[b]thiophene-2-carboxylic acid is 476199-14-1.

What are the molecular formula and molecular weight of 4-Methoxybenzo[b]thiophene-2-carboxylic acid?

4-Methoxybenzo[b]thiophene-2-carboxylic acid has molecular formula C10H8O3S and molecular weight 208.234 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Methoxybenzo[b]thiophene-2-carboxylic acid (CAS 476199-14-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498935-9 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.