4-Methylpyrazol-5-one

4-甲基吡唑-5-酮

4-Methylpyrazol-5-one (CAS 1071751-66-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O and a molecular weight of 96.09 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1071751-66-0
Jingsj CID: J-1554858-6
Molecular Formula: C₄H₄N₂O
Chinese Name: 4-甲基吡唑-5-酮
Molecular Weight: 96.09 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-Methylpyrazol-5-one?

The CAS number of 4-Methylpyrazol-5-one is 1071751-66-0.

What are the molecular formula and molecular weight of 4-Methylpyrazol-5-one?

4-Methylpyrazol-5-one has molecular formula C4H4N2O and molecular weight 96.09 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Methylpyrazol-5-one (CAS 1071751-66-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1554858-6 (accessed 2026-10-25).

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