2-Amino-5-([4-sulfophenyl]azo)benzenesulfonic acid monosodium salt 4-Amino-1,1 inverted exclamation marka-azobenzene-3,4 inverted exclamation marka-disulfonic acid monosodium salt 74543-21-8 Acid Yellow 9 monosodium salt CAS 74543-21-8

Purity 97%+In StockPharmaceutical Standards
CAS No.74543-21-8
Molecular Formula2*C12H22N3O6S2 2*Na
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Amino-5-([4-sulfophenyl]azo)benzenesulfonic acid monosodium salt 4-Amino-1,1 inverted exclamation marka-azobenzene-3,4 inverted exclamation marka-disulfonic acid monosodium salt 74543-21-8 Acid Yellow 9 monosodium salt CAS 74543-21-8 chemical structure

Description

CATO supplies 2-Amino-5-([4-sulfophenyl]azo)benzenesulfonic acid monosodium salt 4-Amino-1,1 inverted exclamation marka-azobenzene-3,4 inverted exclamation marka-disulfonic acid monosodium salt 74543-21-8 Acid Yellow 9 monosodium salt (CAS 74543-21-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: 2*C12H22N3O6S2 2*Na. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular Formula2*C12H22N3O6S2 2*Na
Molecular Weight391.43 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)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1978
Nitrogen Atoms3
Sulfur Atoms2

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