Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate

(5-氧代-4,5-二氢-1H-吡唑-3-基)乙酸乙酯

Also known as: 1H-Pyrazole-3-acetic acid, 4,5-dihydro-5-oxo-, ethyl ester, 2-Pyrazoline-3-acetic acid, 5-oxo-, ethyl ester, 4,5-dihydro-5-oxo-1H-Pyrazole-3-acetic acid ethyl ester, ETHYL (5-OXO-4,5-DIHYDRO-1H-PYRAZOL-3-YL)ACETATE, ethyl 2-(4,5-dihydro-5-oxo-1H-pyrazol-3-yl)acetate

Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate (CAS 98334-81-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O3 and a molecular weight of 170.16600 g/mol. It is also known as 1H-Pyrazole-3-acetic acid, 4,5-dihydro-5-oxo-, ethyl ester, 2-Pyrazoline-3-acetic acid, 5-oxo-, ethyl ester and 4,5-dihydro-5-oxo-1H-Pyrazole-3-acetic acid ethyl ester. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 98334-81-7
Jingsj CID: J-1169672-2
Molecular Formula: C₇H₁₀N₂O₃
Chinese Name: (5-氧代-4,5-二氢-1H-吡唑-3-基)乙酸乙酯
Molecular Weight: 170.16600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate?

The CAS number of Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate is 98334-81-7.

What are the molecular formula and molecular weight of Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate?

Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate has molecular formula C7H10N2O3 and molecular weight 170.16600 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. "Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate (CAS 98334-81-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1169672-2 (accessed 2026-10-25).

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