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5-Nitro-1-benzothiophene-2-carboxylic acid

Also known as: 5-Nitrobenzo[b]thiophene-2-carboxylic acid, 5-Nitro-2-benzothiophenecarboxylic acid, 5-Nitrobenzothiophene-2-carboxylic acid, 2-Carboxy-5-nitrobenzo[b]thiophene, Benzo[b]thiophene-2-carboxylic acid, 5-nitro-, IFLAB-BB F2108-0141

5-Nitro-1-benzothiophene-2-carboxylic acid (CAS 6345-55-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5NO4S and a molecular weight of 223.20500 g/mol. Key properties include a melting point of 239-241ºC, a boiling point of 473.6ºC at 760 mmHg, a density of 1.624 g/cm3 and a flash point of 240.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6345-55-7
Jingsj CID
J-19859-4
Molecular Formula
C9H5NO4S
Molecular Weight
223.20500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point239-241ºC
Boiling Point473.6ºC at 760 mmHg
Density1.624 g/cm3
Flash Point240.2ºC
Exact Mass222.99400
PSA111.36000
LogP3.03090

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-Nitro-1-benzothiophene-2-carboxylic acid?

The CAS number of 5-Nitro-1-benzothiophene-2-carboxylic acid is 6345-55-7.

What are the molecular formula and molecular weight of 5-Nitro-1-benzothiophene-2-carboxylic acid?

5-Nitro-1-benzothiophene-2-carboxylic acid has molecular formula C9H5NO4S and molecular weight 223.20500 g/mol.

What are the upstream and downstream products of 5-Nitro-1-benzothiophene-2-carboxylic acid?

For 5-Nitro-1-benzothiophene-2-carboxylic acid, Upstream Products: Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate, Methyl 5-nitrobenzo[b]thiophene-2-carboxylate, 2-Chloro-5-nitrobenzaldehyde; Downstream Products: 5-nitro-1-benzothiophene, Benzo[b]thiophen-5-ol, 3-bromo-5-nitro-1-benzothiophene.

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-Nitro-1-benzothiophene-2-carboxylic acid (CAS 6345-55-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19859-4 (accessed 2026-11-09).

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