p-Aminoazobenzene-4'-sulfonic acid CAS 104-23-4

Purity 97%+In StockPharmaceutical Standards
CAS No.104-23-4
Molecular FormulaC12H11N3O3S
Molecular Weight277.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

p-Aminoazobenzene-4'-sulfonic acid CAS 104-23-4 chemical structure

Description

p-Aminoazobenzene-4'-sulfonic acid (CAS 104-23-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H11N3O3S. Molecular weight: 277.30 g/mol. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC12H11N3O3S
Molecular Weight277.30 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms3
Sulfur Atoms1

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