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5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid

Also known as: 5,6-Dimethoxy-1-benzothiophene-2-carboxylic acid, 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid, 5,6-Dimethoxybenzothiophene-2-carboxylic acid, 5,6-Dimethoxy-benzo[b]thiophen-2-carbonsaeure, dimethoxybenzothiophenecarboxylicacid

5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid (CAS 23046-03-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H10O4S and a molecular weight of 238.260 g/mol. Key properties include a boiling point of 424.7±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 210.7±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23046-03-9
Jingsj CID
J-1518993-2
Molecular Formula
C11H10O4S
Molecular Weight
238.260 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point424.7±40.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point210.7±27.3 °C
Exact Mass238.029984
PSA84.00000
LogP3.72
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.643

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 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid?

The CAS number of 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid is 23046-03-9.

What are the molecular formula and molecular weight of 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid?

5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid has molecular formula C11H10O4S and molecular weight 238.260 g/mol.

What are the upstream and downstream products of 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid?

For 5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid, Upstream Products: Methyl 5,6-dimethoxybenzo[b]thiophene-2-carboxylate, 2-Bromo-4,5-dimethoxybenzaldehyde, 2-Fluoro-4,5-dimethoxybenzaldehyde; Downstream Products: Methyl 5,6-dimethoxybenzo[b]thiophene-2-carboxylate, 5,6-dimethoxybenzo[b]thiophene.

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

Last updated:

How to cite: Jingsj. "5,6-Dimethoxybenzo[b]thiophene-2-carboxylic acid (CAS 23046-03-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518993-2 (accessed 2026-11-09).

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