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N,N-Diethylthiophene-3-carboxamide

Also known as: 3-Thiophenecarboxamide, N,N-diethyl-, N,N-diethyl-3-thiophenecarboxamide, N,N-diethylthiophene-3-carboxylamide, 3-thiophenecarboxylic acid, N,N-diethylamide

N,N-Diethylthiophene-3-carboxamide (CAS 73540-75-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H13NOS and a molecular weight of 183.271 g/mol. Key properties include a boiling point of 296.0±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 132.8±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
73540-75-7
Jingsj CID
J-932006-3
Molecular Formula
C9H13NOS
Molecular Weight
183.271 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point296.0±13.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point132.8±19.8 °C
Exact Mass183.071777
PSA48.55000
LogP1.62
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.538

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 N,N-Diethylthiophene-3-carboxamide?

The CAS number of N,N-Diethylthiophene-3-carboxamide is 73540-75-7.

What are the molecular formula and molecular weight of N,N-Diethylthiophene-3-carboxamide?

N,N-Diethylthiophene-3-carboxamide has molecular formula C9H13NOS and molecular weight 183.271 g/mol.

What are the upstream and downstream products of N,N-Diethylthiophene-3-carboxamide?

For N,N-Diethylthiophene-3-carboxamide, Upstream Products: 3-Thiophenecarbonyl chloride, Diethylamine, Thiophene-3-carboxylic acid; Downstream Products: Benzo[1,2-b:4,5-b']dithiophene-4,8-dione, 3-Acetylthiophene.

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

Last updated:

How to cite: Jingsj. "N,N-Diethylthiophene-3-carboxamide (CAS 73540-75-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-932006-3 (accessed 2026-11-09).

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