137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 CAS 137-50-8

Purity 97%+In StockPharmaceutical Standards
CAS No.137-50-8
Molecular FormulaC6H8N2O6S2
Molecular Weight268.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

137-50-8
1,3-Benzenedisulfonic acid, 4,6-diamino-
4,6-Diaminobenzene-1,3-disulphonic acid
EINECS 205-298-8 CAS 137-50-8 chemical structure

Description

137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 (CAS 137-50-8) is a high-purity analytical reference standard with the molecular formula C6H8N2O6S2 and a molecular weight of 268.27 g/mol.

The molecular framework of 137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 (C6H8N2O6S2) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 137-50-8 1,3-Benzenedisulfonic acid, 4,6-diamino- 4,6-Diaminobenzene-1,3-disulphonic acid EINECS 205-298-8 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC6H8N2O6S2
Molecular Weight268.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2
Sulfur Atoms2

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