4-[[4-[[2-(Diethylamino)ethyl]sulphonyl]-2,5-dimethoxyphenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid,sodium salt

• Supplier: Alfa Chemistry
• Product #: ACM94249204
• CAS #: 94249-20-4