50662-99-2 Reactive yellow 2 Trisodium 4-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-(2-(1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)-, sodium salt (1:3) Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, trisodium salt Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo), trisodium salt EINECS 256-692-1 Cibacron Brilliant Yellow 3G-P CAS 50662-99-2

Purity 97%+In StockPharmaceutical Standards
CAS No.50662-99-2
Molecular FormulaC25H43Cl3N9O10S3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

50662-99-2
Reactive yellow 2
Trisodium 4-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate
Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-(2-(1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)-, sodium salt (1:3)
Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, trisodium salt
Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo), trisodium salt
EINECS 256-692-1
Cibacron Brilliant Yellow 3G-P CAS 50662-99-2 chemical structure

Description

The occurrence of 50662-99-2 Reactive yellow 2 Trisodium 4-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-(2-(1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)-, sodium salt (1:3) Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, trisodium salt Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo), trisodium salt EINECS 256-692-1 Cibacron Brilliant Yellow 3G-P is closely related to a salt form, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 50662-99-2 Reactive yellow 2 Trisodium 4-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-(2-(1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)-, sodium salt (1:3) Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, trisodium salt Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo), trisodium salt EINECS 256-692-1 Cibacron Brilliant Yellow 3G-P (CAS 50662-99-2), a certified reference material (molecular formula C25H43Cl3N9O10S3Na, MW 855.19 g/mol) for analytical method development and quality control.

The molecular framework of 50662-99-2 Reactive yellow 2 Trisodium 4-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulphonatophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-(2-(1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)-, sodium salt (1:3) Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, trisodium salt Benzenesulfonic acid, 4-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-((1-(2,5-dichloro-4-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo), trisodium salt EINECS 256-692-1 Cibacron Brilliant Yellow 3G-P (C25H43Cl3N9O10S3Na) is characterized by a salt form, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC25H43Cl3N9O10S3 3*Na
Molecular Weight855.19 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971
Halogen ContentCl-containing
Nitrogen Atoms9
Sulfur Atoms3

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