3-(2,5-disulfophenylazo)-4-hydroxy-7-4-chlor-6-[4-(2-sulfoxyethylsulfonyl)phenylamino]-1,3,5-triazin-2-ylaminonaphthalen-2-sulfonsyre, natriumsalt
3-(2,5-disulfophenylazo)-4-hydroxy-7-4-chloro-6-[4-(2-sulfoxyethylsulfonyl)phenylamino]-1,3,5-triazine-2-ylaminonaphthalene-2-sulfonic acid, sodium salt