selenodimethylene,indole,1h-indole
1H-Indole
67786-20-33-[[2,5-Dichloro-4-[(ethylamino)sulfonyl]phenyl]azo]-2-methyl-1H-indole-7-sulfonic acid sodium salt
67786-21-43-[[2,5-Dichloro-4-[(ethylamino)sulfonyl]phenyl]azo]-2-methyl-1H-indole-5-sulfonic acid sodium salt