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3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide

3-羟基-1-甲基-1H-吡唑-5-羧肼

Also known as: 3-HYDROXY-1-METHYL-1H-PYRAZOLE-5-CARBOHYDRAZIDE, 2-Methyl-5-oxo-2,5-dihydro-1H-pyrazole-3-carbohydrazide, 2-methyl-5-oxo-1H-pyrazole-3-carbohydrazide, 1H-Pyrazole-3-carboxylic acid, 2,5-dihydro-2-methyl-5-oxo-, hydrazide, 5-Hydroxy-2-methylpyrazole-3-carbohydrazide, HMS553G08

3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide (CAS 844891-24-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8N4O2 and a molecular weight of 156.14300 g/mol. It is also known as 3-HYDROXY-1-METHYL-1H-PYRAZOLE-5-CARBOHYDRAZIDE, 2-Methyl-5-oxo-2,5-dihydro-1H-pyrazole-3-carbohydrazide and 2-methyl-5-oxo-1H-pyrazole-3-carbohydrazide. Key property: a density of 1.408g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
844891-24-3
Jingsj CID
J-1359740-9
Molecular Formula
C5H8N4O2
Chinese Name
3-羟基-1-甲基-1H-吡唑-5-羧肼
Molecular Weight
156.14300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Density1.408g/cm3

Frequently Asked Questions

What is the CAS number of 3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide?

The CAS number of 3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide is 844891-24-3.

What are the molecular formula and molecular weight of 3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide?

3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide has molecular formula C5H8N4O2 and molecular weight 156.14300 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Hydroxy-1-methyl-1H-pyrazole-5-carbohydrazide (CAS 844891-24-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359740-9 (accessed 2026-10-25).

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