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2-Chloro-5-hydroxypyrimidine

Also known as: 2-Chloropyrimidin-5-ol, 5-Pyrimidinol, 2-chloro-, 2-Chloro-5-pyrimidinol, 2-Chloro-5-Hydroxypyrimid

2-Chloro-5-hydroxypyrimidine (CAS 4983-28-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3ClN2O and a molecular weight of 130.532 g/mol. Key properties include a melting point of 185 °C(dec.), a boiling point of 328.1±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 152.3±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4983-28-2
Jingsj CID
J-1083130-8
Molecular Formula
C4H3ClN2O
Molecular Weight
130.532 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point185 °C(dec.)
Boiling Point328.1±15.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point152.3±20.4 °C
Exact Mass129.993393
PSA46.01000
LogP0.67
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.593

Customs & Trade Information

HS Code2933599090
Summary2933599090. 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 2-Chloro-5-hydroxypyrimidine?

The CAS number of 2-Chloro-5-hydroxypyrimidine is 4983-28-2.

What are the molecular formula and molecular weight of 2-Chloro-5-hydroxypyrimidine?

2-Chloro-5-hydroxypyrimidine has molecular formula C4H3ClN2O and molecular weight 130.532 g/mol.

What are the upstream and downstream products of 2-Chloro-5-hydroxypyrimidine?

For 2-Chloro-5-hydroxypyrimidine, Upstream Products: 2-Chloro-5-methoxypyrimidine, 2-Chloropyrimidine-5-boronic acid, 5-Amino-2-chloropyrimidine; Downstream Products: 5-(Benzyloxy)-2-chloropyrimidine, 2-Chloro-5-ethoxypyrimidine, 2-chloro-5-(2-methoxyethoxy)pyrimidine.

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

Last updated:

How to cite: Jingsj. "2-Chloro-5-hydroxypyrimidine (CAS 4983-28-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1083130-8 (accessed 2026-11-09).

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