1-Phenyl-1H-pyrazol-5(4H)-one

1-苯基-1H-吡唑-5(4H)-酮

Also known as: 2-Phenyl-2H-pyrazole-3(4H)-one, 1-Phenyl-2-pyrazolin-5-one, 1-Phenyl-2-pyrazoline-5-one, 1-Phenyl-5-pyrazolone, 2,4-Dihydro-2-phenyl-3H-pyrazol-3-one, 2-Phenyl-2,4-dihydro-3H-pyrazol-3-one

1-Phenyl-1H-pyrazol-5(4H)-one (CAS 876-92-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O and a molecular weight of 160.17300 g/mol. It is also known as 2-Phenyl-2H-pyrazole-3(4H)-one, 1-Phenyl-2-pyrazolin-5-one and 1-Phenyl-2-pyrazoline-5-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 876-92-6
Jingsj CID: J-1044481-2
Molecular Formula: C₉H₈N₂O
Chinese Name: 1-苯基-1H-吡唑-5(4H)-酮
Molecular Weight: 160.17300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

No offers for this compound yet.

Request a quote

Frequently Asked Questions

What is the CAS number of 1-Phenyl-1H-pyrazol-5(4H)-one?

The CAS number of 1-Phenyl-1H-pyrazol-5(4H)-one is 876-92-6.

What are the molecular formula and molecular weight of 1-Phenyl-1H-pyrazol-5(4H)-one?

1-Phenyl-1H-pyrazol-5(4H)-one has molecular formula C9H8N2O and molecular weight 160.17300 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. "1-Phenyl-1H-pyrazol-5(4H)-one (CAS 876-92-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1044481-2 (accessed 2026-10-23).

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