Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate

Also known as: 5-Chloro-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester, 5-Chloropyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester, Chloropyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester, Pyrazolo[1,5-a]pyrimidine-3-carboxylic acid, 5-chloro-, ethyl ester, ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate, qc-5382, Loptinib intermediate

Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1224944-77-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8ClN3O2 and a molecular weight of 225.632 g/mol. Key property: a density of 1.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1224944-77-7
Jingsj CID: J-1047508-8
Molecular Formula: C₉H₈ClN₃O₂
Molecular Weight: 225.632 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.5±0.1 g/cm3
Exact Mass	225.030502
PSA	56.49000
LogP	0.68
Refractive Index	1.648
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate?

The CAS number of Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate is 1224944-77-7.

What are the molecular formula and molecular weight of Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate?

Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate has molecular formula C9H8ClN3O2 and molecular weight 225.632 g/mol.

What are the upstream and downstream products of Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate?

For Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate, Upstream Products: ethyl 5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate, Ethyl 3-amino-1H-pyrazole-4-carboxylate, Ethyl 5-amino-1H-pyrazole-4-carboxylate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 1224944-77-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1047508-8 (accessed 2026-11-09).

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