4-Pyrimidinecarbonyl chloride

Also known as: PYRIMIDINE-4-CARBONYLCHLORIDE, 4-Pyrimidinecarbonyl chloride (9CI), Pyrimidine-4-carbonylchloride, pyrimidine-4-carbonyl chloride, 4-(chlorocarbonyl)pyrimidine

4-Pyrimidinecarbonyl chloride (CAS 184951-32-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3ClN2O and a molecular weight of 142.54300 g/mol. Key properties include a boiling point of 230.8ºC at 760 mmHg, a density of 1.393g/cm3 and a flash point of 93.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 184951-32-4
Jingsj CID: J-1031820-4
Molecular Formula: C₅H₃ClN₂O
Molecular Weight: 142.54300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	230.8ºC at 760 mmHg
Density	1.393g/cm3
Flash Point	93.4ºC
Exact Mass	141.99300
PSA	42.85000
LogP	0.85560
Vapor Pressure	0.0646mmHg at 25°C
Refractive Index	1.551

Customs & Trade Information

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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 4-Pyrimidinecarbonyl chloride?

The CAS number of 4-Pyrimidinecarbonyl chloride is 184951-32-4.

What are the molecular formula and molecular weight of 4-Pyrimidinecarbonyl chloride?

4-Pyrimidinecarbonyl chloride has molecular formula C5H3ClN2O and molecular weight 142.54300 g/mol.

What are the upstream and downstream products of 4-Pyrimidinecarbonyl chloride?

For 4-Pyrimidinecarbonyl chloride, Upstream Products: 4-Pyrimidinecarboxylic acid.

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. "4-Pyrimidinecarbonyl chloride (CAS 184951-32-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1031820-4 (accessed 2026-11-09).

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