4H-Imidazo[4,5-d]-1,2,3-triazin-4-one

2-氮杂次黄嘌呤

Also known as: 2-Azahypoxanthine, Dacarbazine impurity A, Dacarbazine related compound B, 2-Azahypoxanthine (anhydrous), 4-Oxo-4H-imidazo(4,5-D)-v-triazine, Imidazo[4,5-d]triazin-4-one

4H-Imidazo[4,5-d]-1,2,3-triazin-4-one (CAS 63907-29-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4HN5O and a molecular weight of 135.08400 g/mol. It is also known as 2-Azahypoxanthine, Dacarbazine impurity A and Dacarbazine related compound B. Key properties include a boiling point of 217.5ºC at 760 mmHg, a density of 2.22g/cm3 and a flash point of 83.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
63907-29-9
Jingsj CID
J-904147-5
Molecular Formula
C4HN5O
Chinese Name
2-氮杂次黄嘌呤
Molecular Weight
135.08400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point217.5ºC at 760 mmHg
Density2.22g/cm3
Flash Point83.4ºC

Frequently Asked Questions

What is the CAS number of 4H-Imidazo[4,5-d]-1,2,3-triazin-4-one?

The CAS number of 4H-Imidazo[4,5-d]-1,2,3-triazin-4-one is 63907-29-9.

What are the molecular formula and molecular weight of 4H-Imidazo[4,5-d]-1,2,3-triazin-4-one?

4H-Imidazo[4,5-d]-1,2,3-triazin-4-one has molecular formula C4HN5O and molecular weight 135.08400 g/mol.

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

Last updated:

How to cite: Jingsj. "4H-Imidazo[4,5-d]-1,2,3-triazin-4-one (CAS 63907-29-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-904147-5 (accessed 2026-10-23).

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