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Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate

Also known as: ethyl 5-nitro-1-benzothiophene-2-carboxylate, 5-nitro-benzo[b]thiophene-2-carboxylic acid ethyl ester, benzo[b]thiophene-2-carboxylic acid, 5-nitro-, ethyl ester, ethyl 5-nitrobenzothiophene-2-carboxylate, ethyl-5-nitrobenzo[b]thiophene-2-carboxylate

Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate (CAS 25785-09-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9NO4S and a molecular weight of 251.258 g/mol. Key properties include a melting point of 164-165ºC, a boiling point of 402.0±25.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 196.9±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
25785-09-5
Jingsj CID
J-1104518-4
Molecular Formula
C11H9NO4S
Molecular Weight
251.258 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point164-165ºC
Boiling Point402.0±25.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point196.9±23.2 °C
Exact Mass251.025223
PSA100.36000
LogP3.35
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.651

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 Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate?

The CAS number of Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate is 25785-09-5.

What are the molecular formula and molecular weight of Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate?

Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate has molecular formula C11H9NO4S and molecular weight 251.258 g/mol.

What are the upstream and downstream products of Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate?

For Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate, Upstream Products: Ethyl thioglycolate, 2-Chloro-5-nitrobenzaldehyde, 2-Fluoro-5-nitrobenzaldehyde; Downstream Products: 5-nitro-1-benzothiophene, 5-Nitro-1-benzothiophene-2-carboxylic acid, Ethyl 5-amino-1-benzothiophene-2-carboxylate.

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

Last updated:

How to cite: Jingsj. "Ethyl 5-nitrobenzo[b]thiophene-2-carboxylate (CAS 25785-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1104518-4 (accessed 2026-11-09).

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