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CAS Number :
2508-19-2
Synonym :
2,4,6-Trinitrobenzenesulfonic acid, 5% solution in water; TNBS
Molecular Formula :
C₆H₃N₃O₉S
Picrylsulfonic acid, 5% solution in water is the arenesulfonic acid that is benzenesulfonic acid with three nitro substituents in the 2-, 4- and 6-positions.