71888-82-9 2,7-NAPHTHALENEDISULFONIC ACID 4-HYDROXY-5-[[4-(PHENYLAMINO)-5-SULFO-1-NAPHTHALENYL]AZO]-,COMPDS. WITH N,N'-DI(PHENYL,TOLYL AND XYLYL)GUANIDINE (1:3)
72869-92-2 2-NAPHTHALENESULFONIC ACID 4-HYDROXY-7-[[[[5-HYDROXY-6-[(2-METHOXYPHENYL)AZO]-7-SULFO-2-NAPHTHALENYL]AMINO]CARBONYL]AMINO]-3-[(6-SULFO-2-NAPHTHALENYL)AZO]-,COMPD. WITH 2,2'-(METHYLIMINO)BIS[ETHANOL] (