3766359 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3766359 > 2 > ChemIDplus > 072208287 > 1,3-Naphthalenedisulfonic acid, 7,7'-((4,6-dihydroxy-1,3-phenylene)bis(azo))bis-, compd. with N,N'-bis(2-methylphenyl)guanidine (1:4) 7,7'-((4,6-Dihydroxy-m-phenylene)diazo)bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) 72208-28-7 EINECS 276-477-6 > 72208-28-7 > 072208287 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=072208287 $$$$