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Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate

Also known as: Ethyl 1,4,5,6-tetrahydrocyclopentapyrazole-3-carboxylate, 1,4,5,6-Tetrahydrocyclopenta[c]pyrazole-3-carboxylic acid ethyl ester, 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylic acid ethyl ester, Cyclopenta[c]pyrazole-3-carboxylic acid, 1,4,5,6-tetrahydro-, ethyl ester, Ethyl 1H,4H,5H,6H-cyclopenta[c]pyrazole-3-carboxylate

Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate (CAS 5932-31-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12N2O2 and a molecular weight of 180.204 g/mol. Key properties include a melting point of 125 °C, a boiling point of 384.1±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 186.1±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5932-31-0
Jingsj CID
J-1172957-0
Molecular Formula
C9H12N2O2
Molecular Weight
180.204 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point125 °C
Boiling Point384.1±42.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point186.1±27.9 °C
Exact Mass180.089874
PSA54.98000
LogP1.75
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.569
Storage Conditions2-8°C

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate?

The CAS number of Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate is 5932-31-0.

What are the molecular formula and molecular weight of Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate?

Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate has molecular formula C9H12N2O2 and molecular weight 180.204 g/mol.

What are the upstream and downstream products of Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate?

For Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate, Upstream Products: Cyclopentanone, Diethyl oxalate, Ethyl 2-cyclopentyl-2-oxoacetate; Downstream Products: 1,4,5,6-Tetrahydrocyclopenta[c]pyrazole-3-carboxylic acid, 1,4,5,6-Tetrahydrocyclopenta[c]pyrazole, 1,4,5,6-Tetrahydrocyclopenta[c]pyrazole-3-carbohydrazide.

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

Last updated:

How to cite: Jingsj. "Ethyl 1,4,5,6-tetrahydrocyclopenta[c]pyrazole-3-carboxylate (CAS 5932-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1172957-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.