Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate

5-氧代-1-苯基-2,5-二氢-1H-吡唑-3-羧酸甲酯

Also known as: 1-Phenyl-3-carbomethoxypyrazolin-5-one, 1-Phenyl-3-methoxycarbonylpyrazol-5-one, 3-Carbomethoxy-1-phenyl-5-pyrazolinone, 2-Phenyl-5-methoxycarbonyl-pyrazolone, 1H-Pyrazole-3-carboxylic acid, 2,5-dihydro-5-oxo-1-phenyl-, methyl ester

Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate (CAS 16135-26-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H10N2O3 and a molecular weight of 218.20900 g/mol. It is also known as 1-Phenyl-3-carbomethoxypyrazolin-5-one, 1-Phenyl-3-methoxycarbonylpyrazol-5-one and 3-Carbomethoxy-1-phenyl-5-pyrazolinone. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16135-26-5
Jingsj CID
J-1044514-9
Molecular Formula
C11H10N2O3
Chinese Name
5-氧代-1-苯基-2,5-二氢-1H-吡唑-3-羧酸甲酯
Molecular Weight
218.20900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate?

The CAS number of Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate is 16135-26-5.

What are the molecular formula and molecular weight of Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate?

Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate has molecular formula C11H10N2O3 and molecular weight 218.20900 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylate (CAS 16135-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1044514-9 (accessed 2026-10-24).

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