Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate

4,5-二氢-1H-吡唑-5-羧酸乙酯

Also known as: 4,5-dihydropyrazole-5-carboxylic acid ethyl ester, 3,4-dihydro-2H-pyrazole-3-carboxylic acid ethyl ester, 1H-Pyrazole-5-carboxylic acid, 4,5-dihydro-, ethyl ester

Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate (CAS 89600-89-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H10N2O2 and a molecular weight of 142.156 g/mol. It is also known as 4,5-dihydropyrazole-5-carboxylic acid ethyl ester, 3,4-dihydro-2H-pyrazole-3-carboxylic acid ethyl ester and 1H-Pyrazole-5-carboxylic acid, 4,5-dihydro-, ethyl ester. Key properties include a boiling point of 236.2±33.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 96.6±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
89600-89-5
Jingsj CID
J-1186385-2
Molecular Formula
C6H10N2O2
Chinese Name
4,5-二氢-1H-吡唑-5-羧酸乙酯
Molecular Weight
142.156 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point236.2±33.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point96.6±25.4 °C

Frequently Asked Questions

What is the CAS number of Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate?

The CAS number of Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate is 89600-89-5.

What are the molecular formula and molecular weight of Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate?

Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate has molecular formula C6H10N2O2 and molecular weight 142.156 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 4,5-dihydro-1H-pyrazole-5-carboxylate (CAS 89600-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1186385-2 (accessed 2026-10-24).

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