2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide

2-氨基-5,6-二氢-N-甲基-4H-环戊并[b]噻吩-3-羧酰胺

Also known as: 4H-Cyclopenta[b]thiophene-3-carboxamide, 2-amino-5,6-dihydro-N-methyl- (9CI), 2-amino-5,6-dihydro-N-methyl-4H-cyclopenta[b]thiophene-3-carboxamide, 2-amino-n-methyl-4h,5h,6h-cyclopentabthiophene-3-carboxamide

2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide (CAS 666715-71-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12N2OS and a molecular weight of 196.26900 g/mol. It is also known as 4H-Cyclopenta[b]thiophene-3-carboxamide, 2-amino-5,6-dihydro-N-methyl- (9CI), 2-amino-5,6-dihydro-N-methyl-4H-cyclopenta[b]thiophene-3-carboxamide and 2-amino-n-methyl-4h,5h,6h-cyclopentabthiophene-3-carboxamide. Key properties include a boiling point of 332.5ºC at 760 mmHg, a density of 1.337 g/cm3 and a flash point of 154.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
666715-71-5
Jingsj CID
J-1103598-7
Molecular Formula
C9H12N2OS
Chinese Name
2-氨基-5,6-二氢-N-甲基-4H-环戊并[b]噻吩-3-羧酰胺
Molecular Weight
196.26900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point332.5ºC at 760 mmHg
Density1.337 g/cm3
Flash Point154.9ºC

Frequently Asked Questions

What is the CAS number of 2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide?

The CAS number of 2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide is 666715-71-5.

What are the molecular formula and molecular weight of 2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide?

2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide has molecular formula C9H12N2OS and molecular weight 196.26900 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Amino-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide (CAS 666715-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1103598-7 (accessed 2026-10-24).

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