5-[[2-(3-Methyl-5-oxo-2-pyrazolin-1-yl)-4-sulfophenyl]-sulfonyl] salicylic acid 5-[[2-(3-Methyl-5-oxo-2-pyrazolin-1-yl)-4-sulfophenyl]-sulfonyl] salicylic acid CAS Number:- 6201-75-8 Country :- Frankfurt DCGI Registered :- No