1H-Imidazo[4,5-b]pyrazin-5(4H)-one

1H-咪唑并[4,5-b]吡嗪-5(4H)-酮

Also known as: 1H-Imidazo[4,5-b]pyrazin-5(4H)-one, 1H-Imidazo[4,5-b]pyrazin-5-ol, 1H-Imidazo[4,5-b]pyrazin-5-ol (7CI), 3,4-dihydroimidazo[4,5-b]pyrazin-5-one, 5H-Imidazo[4,5-b]pyrazin-5-one, 3,4-dihydro-

1H-Imidazo[4,5-b]pyrazin-5(4H)-one (CAS 856345-70-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4O and a molecular weight of 136.11100 g/mol. It is also known as 1H-Imidazo[4,5-b]pyrazin-5-ol, 1H-Imidazo[4,5-b]pyrazin-5-ol (7CI) and 3,4-dihydroimidazo[4,5-b]pyrazin-5-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 856345-70-5
Jingsj CID: J-1590002-7
Molecular Formula: C₅H₄N₄O
Chinese Name: 1H-咪唑并[4,5-b]吡嗪-5(4H)-酮
Molecular Weight: 136.11100 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 1H-Imidazo[4,5-b]pyrazin-5(4H)-one?

The CAS number of 1H-Imidazo[4,5-b]pyrazin-5(4H)-one is 856345-70-5.

What are the molecular formula and molecular weight of 1H-Imidazo[4,5-b]pyrazin-5(4H)-one?

1H-Imidazo[4,5-b]pyrazin-5(4H)-one has molecular formula C5H4N4O and molecular weight 136.11100 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1H-Imidazo[4,5-b]pyrazin-5(4H)-one (CAS 856345-70-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1590002-7 (accessed 2026-10-24).

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