4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid CAS 130-23-4

Purity 97%+In StockPharmaceutical Standards
CAS No.130-23-4
Molecular FormulaC10H9NO7S2
Molecular Weight319.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid CAS 130-23-4 chemical structure

Description

CATO supplies 4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid (CAS 130-23-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C10H9NO7S2. Molecular weight: 319.31 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC10H9NO7S2
Molecular Weight319.31 g/mol
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.)1957
Nitrogen Atoms1
Sulfur Atoms2

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