4-Amino-1-methyl-1H-pyrazole-3-carboxamide

4-氨基-1-甲基-1H-吡唑-3-甲酰胺

Also known as: 1H-Pyrazole-3-carboxamide, 4-amino-1-methyl- (9CI), 4-Amino-1-methyl-1H-pyrazole-3-carboxylic acid amide, 4-Amino-1-methyl-pyrazole-3-carboxamide, 4-Amino-3-carbamoyl-1-methylpyrazole, 4-amino-1-methylpyrazole-3-carboxamide, 1-Methyl-4-amino-pyrazol-3-carboxamid

4-Amino-1-methyl-1H-pyrazole-3-carboxamide (CAS 3920-40-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N4O and a molecular weight of 140.14300 g/mol. It is also known as 1H-Pyrazole-3-carboxamide, 4-amino-1-methyl- (9CI), 4-Amino-1-methyl-1H-pyrazole-3-carboxylic acid amide and 4-Amino-1-methyl-pyrazole-3-carboxamide. Key properties include a boiling point of 355.1ºC at 760 mmHg, a density of 1.56g/cm3 and a flash point of 168.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3920-40-9
Jingsj CID
J-1453925-9
Molecular Formula
C5H8N4O
Chinese Name
4-氨基-1-甲基-1H-吡唑-3-甲酰胺
Molecular Weight
140.14300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point355.1ºC at 760 mmHg
Density1.56g/cm3
Flash Point168.6ºC

Frequently Asked Questions

What is the CAS number of 4-Amino-1-methyl-1H-pyrazole-3-carboxamide?

The CAS number of 4-Amino-1-methyl-1H-pyrazole-3-carboxamide is 3920-40-9.

What are the molecular formula and molecular weight of 4-Amino-1-methyl-1H-pyrazole-3-carboxamide?

4-Amino-1-methyl-1H-pyrazole-3-carboxamide has molecular formula C5H8N4O and molecular weight 140.14300 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Amino-1-methyl-1H-pyrazole-3-carboxamide (CAS 3920-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1453925-9 (accessed 2026-10-25).

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