Violuric acid monohydrate

一水紫尿酸

Also known as: Alloxan-5-oxime monohydrate, 5-Isonitrosobarbituric acid monohydrate, 5-(Hydroxyimino)pyrimidine-2,4,6(1H,3H,5H)-trione hydrate, 5-(Hydroxyimino)-2,4,6(1H,3H,5H)-pyrimidinetrione hydrate (1:1), Oximidomesoxalylurea, 2,4,5,6(1H,3H)-Pyrimidinetetrone 5-oxime hydrate, Violuric acid hydrate, 2,4,5,6(1H,3H)-Pyrimidinetetrone 5-oxime, 5-Isonitrosobarbituric acid

Violuric acid monohydrate (CAS 26351-19-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H5N3O5 and a molecular weight of 175.100 g/mol. It is also known as Alloxan-5-oxime monohydrate, 5-Isonitrosobarbituric acid monohydrate and 5-(Hydroxyimino)pyrimidine-2,4,6(1H,3H,5H)-trione hydrate. Key properties include a melting point of 240-250 °C (dec.), a boiling point of 449ºC at 760mmHg and a flash point of 225.4ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

26351-19-9

Jingsj CID

J-25418-0

Molecular Formula

C₄H₅N₃O₅

Chinese Name

一水紫尿酸

Molecular Weight

175.100 g/mol

Category

Organic Acids

Last updated

8/21/2026