5-Cyano-3,4-diphenylthiophene-2-carboxamide

5-氰基-3,4-二苯基噻吩-2-甲酰胺

Also known as: 2-Thiophenecarboxamide, 5-cyano-3,4-diphenyl-, 5-CYANO-3,4-DIPHENYLTHIOPHENE-2-CARBOXAMIDE, 5-Cyano-3,4-diphenyl-2-thiophenecarboxamide, 5-cyano-3,4-diphenyl-thiophene-2-carboxylic acid amide

5-Cyano-3,4-diphenylthiophene-2-carboxamide (CAS 70541-98-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H12N2OS and a molecular weight of 304.36600 g/mol. It is also known as 2-Thiophenecarboxamide, 5-cyano-3,4-diphenyl-, 5-CYANO-3,4-DIPHENYLTHIOPHENE-2-CARBOXAMIDE and 5-Cyano-3,4-diphenyl-2-thiophenecarboxamide. Key properties include a melting point of 265-270ºC, a boiling point of 388.5ºC at 760 mmHg, a density of 1.34g/cm3 and a flash point of 188.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70541-98-9
Jingsj CID
J-20900-1
Molecular Formula
C18H12N2OS
Chinese Name
5-氰基-3,4-二苯基噻吩-2-甲酰胺
Molecular Weight
304.36600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point265-270ºC
Boiling Point388.5ºC at 760 mmHg
Density1.34g/cm3
Flash Point188.7ºC

Frequently Asked Questions

What is the CAS number of 5-Cyano-3,4-diphenylthiophene-2-carboxamide?

The CAS number of 5-Cyano-3,4-diphenylthiophene-2-carboxamide is 70541-98-9.

What are the molecular formula and molecular weight of 5-Cyano-3,4-diphenylthiophene-2-carboxamide?

5-Cyano-3,4-diphenylthiophene-2-carboxamide has molecular formula C18H12N2OS and molecular weight 304.36600 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Cyano-3,4-diphenylthiophene-2-carboxamide (CAS 70541-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20900-1 (accessed 2026-10-24).

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