25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 CAS 25641-18-3

Purity 97%+In StockPharmaceutical Standards
CAS No.25641-18-3
Molecular FormulaC28H47N3O6S2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 CAS 25641-18-3 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies 25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 (CAS 25641-18-3), a certified reference material (molecular formula C28H47N3O6S2Na, MW 608.81 g/mol) for analytical method development and quality control.

25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 (C28H47N3O6S2Na) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), 25641-18-3 Azocarmine G Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, hydroxide, inner salt, monosodium salt Hydrogen 7-phenylsulphonato-5-((4-sulphonatophenyl)amino)benzo(a)phenazinium, sodium salt Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, sodium salt (1:1) Benzo(a)phenazinium, 7-phenylsulfo-5-((4-sulfophenyl)amino)-, inner salt, monosodium salt EINECS 247-157-3 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC28H47N3O6S2 Na
Molecular Weight608.81 g/mol
Purity97%+
StorageStore in a cool place (≤25°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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms3
Sulfur Atoms2

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