4,5,6-Triamino-2(1H)-pyrimidinone

Also known as: 2(1H)-Pyrimidinone, 4,5,6-triamino-, 4,5,6-Triamino-1H-pyrimidin-2-one, 4,5,6-Triamino-2-oxo-dihydro-pyrimidin, 4,5,6-Triaminopyrimidin-2(1H)-one, Methotrexate Impurity 10, Methotrexate Impurity SM2Z6

4,5,6-Triamino-2(1H)-pyrimidinone (CAS 22715-34-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H7N5O and a molecular weight of 141.13100 g/mol. Key properties include a boiling point of 613.2ºC at 760mmHg, a density of 2.16g/cm3 and a flash point of 324.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 22715-34-0
Jingsj CID: J-6382-1
Molecular Formula: C₄H₇N₅O
Molecular Weight: 141.13100 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	613.2ºC at 760mmHg
Density	2.16g/cm3
Flash Point	324.6ºC
Exact Mass	141.06500
PSA	123.81000
LogP	0.26010
Vapor Pressure	1.25E-15mmHg at 25°C
Refractive Index	1.932

Frequently Asked Questions

What is the CAS number of 4,5,6-Triamino-2(1H)-pyrimidinone?

The CAS number of 4,5,6-Triamino-2(1H)-pyrimidinone is 22715-34-0.

What are the molecular formula and molecular weight of 4,5,6-Triamino-2(1H)-pyrimidinone?

4,5,6-Triamino-2(1H)-pyrimidinone has molecular formula C4H7N5O and molecular weight 141.13100 g/mol.

What are the upstream and downstream products of 4,5,6-Triamino-2(1H)-pyrimidinone?

For 4,5,6-Triamino-2(1H)-pyrimidinone, Downstream Products: Isoguanine.

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. "4,5,6-Triamino-2(1H)-pyrimidinone (CAS 22715-34-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6382-1 (accessed 2026-11-09).

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