1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine

1-甲基-3-(2-噻吩基)-1H-吡唑-5-胺

Also known as: 1-Methyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine, 1-Methyl-3-thien-2-yl-1H-pyrazol-5-amine, 1-methyl-3-(2-thienyl)-1H-pyrazole-5-amine, 1-methyl-3-(2-thienyl)pyrazole-5-ylamine, 1H-Pyrazol-5-amine,1-methyl-3-(2-thienyl), 2-methyl-5-thiophen-2-yl-3-pyrazolamine, 2-methyl-5-thiophen-2-ylpyrazol-3-amine, 5-AMINO-1-METHYL-3-(2-THIENYL)PYRAZOLE, 5-amino-1-methyl-3-(thien-2-yl)pyrazole

1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine (CAS 118430-78-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9N3S and a molecular weight of 179.24200 g/mol. It is also known as 1-Methyl-3-(thiophen-2-yl)-1H-pyrazol-5-amine, 1-Methyl-3-thien-2-yl-1H-pyrazol-5-amine and 1-methyl-3-(2-thienyl)-1H-pyrazole-5-amine. Key properties include a melting point of 137-140ºC, a boiling point of 370.3ºC at 760mmHg, a density of 1.37g/cm3 and a flash point of 177.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
118430-78-7
Jingsj CID
J-1138306-2
Molecular Formula
C8H9N3S
Chinese Name
1-甲基-3-(2-噻吩基)-1H-吡唑-5-胺
Molecular Weight
179.24200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point137-140ºC
Boiling Point370.3ºC at 760mmHg
Density1.37g/cm3
Flash Point177.7ºC

Frequently Asked Questions

What is the CAS number of 1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine?

The CAS number of 1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine is 118430-78-7.

What are the molecular formula and molecular weight of 1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine?

1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine has molecular formula C8H9N3S and molecular weight 179.24200 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Methyl-3-(2-thienyl)-1H-pyrazol-5-amine (CAS 118430-78-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1138306-2 (accessed 2026-10-22).

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