Also Called: trisodium 5-{[4-chloro-6-(1-naphthylamino)-1,3,5-triazin-2-yl]amino}-4-hydroxy-3-[(E)-(4-methoxy-2-sulfonatophenyl)diazenyl]-2,7-naphthalenedisulfonate;trisodium 5-{[4-chloro-6-(1-naphthylamino)-1,3,5-triazin-2-yl]amino}-4-hydroxy-3-[(<i>E</i>)-(4-methoxy-2-sulfonatophenyl)diazenyl]-2,7-naphthalenedisulfonate