Einecs 279-303-7

9,10-Dihydro-1,5-dihydroxy-4,8-dinitro-9,10-dioxo-2,7-anthracenedisulfonic acid

9,10-dihydro-1,5-dihydroxy-4,8-dinitro-9,10-dioxoanthracene-2,7-disulphonic acid