4,4’-Dihydroxyantipyrine CAS 72732-51-5

Purity 97%+In StockPharmaceutical Standards
CAS No.72732-51-5
Molecular FormulaC11H12N2O3
Molecular Weight220.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4’-Dihydroxyantipyrine CAS 72732-51-5 chemical structure

Description

4,4’-Dihydroxyantipyrine (CAS 72732-51-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H12N2O3. Molecular weight: 220.22 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC11H12N2O3
Molecular Weight220.22 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977
Nitrogen Atoms2

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