C.I. 18090; Acid mordant Blue 18; Acid Chrome Blue 2A; Acid Chrome Blue 2K; Anthracene Chrome Blue BR; Azochromol Mordant Blue R; Chrome Blue 2K; Chrome Blue MB; Magracrom Blue 2A; 5-(Acetylamino)-3-[(5-chloro-2-hydroxyphenyl)azo]-4-hydroxy-2,7-naphthalenedisulfonic acid disodium salt