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4,5-Diaminopyrimidine

Also known as: 4,5-Pyrimidinediamine, pyrimidine-4,5-diamine, (4-aminopyrimidin-5-yl)amine

4,5-Diaminopyrimidine (CAS 13754-19-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N4 and a molecular weight of 110.117 g/mol. Key properties include a melting point of 204-206 °C(lit.), a boiling point of 348.7±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 175.8±9.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13754-19-3
Jingsj CID
J-35938-6
Molecular Formula
C4H6N4
Molecular Weight
110.117 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point204-206 °C(lit.)
Boiling Point348.7±0.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point175.8±9.5 °C
Exact Mass110.059242
PSA77.82000
LogP-0.08
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.695
Storage Conditions-20°C

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 4,5-Diaminopyrimidine?

The CAS number of 4,5-Diaminopyrimidine is 13754-19-3.

What are the molecular formula and molecular weight of 4,5-Diaminopyrimidine?

4,5-Diaminopyrimidine has molecular formula C4H6N4 and molecular weight 110.117 g/mol.

What are the upstream and downstream products of 4,5-Diaminopyrimidine?

For 4,5-Diaminopyrimidine, Upstream Products: 6-Chloropyrimidine-4,5-diamine, 2-Chloro-4,5-diaminopyrimidine, 2-chloro-5-nitropyrimidin-4-amine; Downstream Products: 8-Mercaptopurine, Purine, 8-(2-Fluorophenyl)-9H-purine.

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

Last updated:

How to cite: Jingsj. "4,5-Diaminopyrimidine (CAS 13754-19-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35938-6 (accessed 2026-11-09).

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