2,4-Diamino-5-nitropyrimidine

2,4-二氨基-5-硝基嘧啶

Also known as: 5-Nitropyrimidine-2,4-diamine, 2,4-Pyrimidinediamine, 5-nitro-, 5-Nitro-2,4-pyrimidinediamine, 5-Nitro-2,4-diaminopyrimidine, NSC 122004

2,4-Diamino-5-nitropyrimidine (CAS 18620-73-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5N5O2 and a molecular weight of 155.115 g/mol. It is also known as 5-Nitropyrimidine-2,4-diamine, 2,4-Pyrimidinediamine, 5-nitro- and 5-Nitro-2,4-pyrimidinediamine. Key properties include a melting point of 345-350ºC, a boiling point of 509.0±53.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 261.6±30.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18620-73-0
Jingsj CID
J-1354978-7
Molecular Formula
C4H5N5O2
Chinese Name
2,4-二氨基-5-硝基嘧啶
Molecular Weight
155.115 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point345-350ºC
Boiling Point509.0±53.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point261.6±30.9 °C

Frequently Asked Questions

What is the CAS number of 2,4-Diamino-5-nitropyrimidine?

The CAS number of 2,4-Diamino-5-nitropyrimidine is 18620-73-0.

What are the molecular formula and molecular weight of 2,4-Diamino-5-nitropyrimidine?

2,4-Diamino-5-nitropyrimidine has molecular formula C4H5N5O2 and molecular weight 155.115 g/mol.

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

Last updated:

How to cite: Jingsj. "2,4-Diamino-5-nitropyrimidine (CAS 18620-73-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354978-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.