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2-Amino-5-chloropyrimidine

Also known as: 5-Chloropyrimidin-2-amine, 5-Chloro-2-pyrimidinamine, 5-chloro-2-pyrimidinylamine, 5-chloro-pyrimidin-2-ylamine, 2-Pyrimidinamine, 5-chloro- (9CI), TIMTEC-BB SBB005486

2-Amino-5-chloropyrimidine (CAS 5428-89-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H4ClN3 and a molecular weight of 129.548 g/mol. Key properties include a melting point of 235-238 °C(lit.), a boiling point of 314.6±34.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 144.1±25.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5428-89-7
Jingsj CID
J-33288-7
Molecular Formula
C4H4ClN3
Molecular Weight
129.548 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point235-238 °C(lit.)
Boiling Point314.6±34.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point144.1±25.7 °C
Exact Mass129.009369
PSA51.80000
LogP0.60
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.618

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H318 — Causes serious eye damage

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-Amino-5-chloropyrimidine?

The CAS number of 2-Amino-5-chloropyrimidine is 5428-89-7.

What are the molecular formula and molecular weight of 2-Amino-5-chloropyrimidine?

2-Amino-5-chloropyrimidine has molecular formula C4H4ClN3 and molecular weight 129.548 g/mol.

Is 2-Amino-5-chloropyrimidine hazardous?

2-Amino-5-chloropyrimidine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H318 — Causes serious eye damage.

What are the upstream and downstream products of 2-Amino-5-chloropyrimidine?

For 2-Amino-5-chloropyrimidine, Upstream Products: 2-Aminopyrimidine, 2-Chloromalonaldehyde, Guanidine carbonate; Downstream Products: 6-chloro-2-(4-methylphenyl)imidazo[1,2-a]pyrimidine, 2,5-Dichloropyrimidine.

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-Amino-5-chloropyrimidine (CAS 5428-89-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33288-7 (accessed 2026-11-09).

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