C.I. Reactive yellow 163

Pyridinium, 1,1'-[(4-sulfo-1,3-phenylene)bis[imino[6-[[3- (acetylamino)-4-[(4,8-disulfo-2-naphthalenyl) azo]phenyl]amino]-1,3,5-triazine-4,2-diyl]]]bis[3-carboxy-, dihydroxide, pentasodium salt