1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide

(9ci)-1-羟基-1H-咪唑-2-羧醛肟,3-氧化物

Also known as: 1H-Imidazole-2-carboxaldehyde,1-hydroxy-,oxime,3-oxide(9CI), (E)-1-hydroxy-2-((hydroxyimino)methyl)-1H-imidazole 3-oxide, 1,3-dihydroxy-2-(nitrosomethylidene)imidazole, 1-Hydroxy-3-oxy-1H-imidazol-2-carbaldehyd-oxim, 1-Hydroxy-imidazol-2-carboxaldoxim-3-oxid, 1-Hydroxyimidazol-2-aldehydoxim-3-oxid, 1-hydroxy-2-hydroxyiminomethylimidazole-3-oxide, 1-hydroxy-3-oxy-1H-imidazole-2-carbaldehyde oxime

1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide (CAS 30391-66-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O3 and a molecular weight of 143.10100 g/mol. It is also known as 1H-Imidazole-2-carboxaldehyde,1-hydroxy-,oxime,3-oxide(9CI), (E)-1-hydroxy-2-((hydroxyimino)methyl)-1H-imidazole 3-oxide and 1,3-dihydroxy-2-(nitrosomethylidene)imidazole. Key properties include a boiling point of 248.5ºC at 760mmHg, a density of 1.65g/cm3 and a flash point of 104.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
30391-66-3
Jingsj CID
J-1066797-6
Molecular Formula
C4H5N3O3
Chinese Name
(9ci)-1-羟基-1H-咪唑-2-羧醛肟,3-氧化物
Molecular Weight
143.10100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point248.5ºC at 760mmHg
Density1.65g/cm3
Flash Point104.1ºC

Frequently Asked Questions

What is the CAS number of 1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide?

The CAS number of 1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide is 30391-66-3.

What are the molecular formula and molecular weight of 1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide?

1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide has molecular formula C4H5N3O3 and molecular weight 143.10100 g/mol.

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

Last updated:

How to cite: Jingsj. "1H-Imidazole-2-carboxaldehyde, 1-hydroxy-, oxime, 3-oxide (CAS 30391-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1066797-6 (accessed 2026-10-26).

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