Procion Reactive Red 4

17681-50-4 (Tetrasodium salt)

2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-((5-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)azo)-4-hydroxy-