Einecs 229-249-5

9,10-Dihydro-1,5-dihydroxy-4,8-dinitro-9,10-dioxo-2,6-anthracenedisulfonic acid

1,5-dihydroxy-4,8-dinitro-9,10-dioxo-9,10-dihydroanthracene-2,6-disulfonic acid