3776749 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3776749 > 2 > ChemIDplus > 084912210 > 2,2'-(Methylenebis(4,1-phenyleneazo(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-4,1-diyl)))bis(toluene-5-sulphonic) acid, sodium salt, compound with N,N'-ditolylguanidine 84912-21-0 EINECS 284-484-0 > 84912-21-0 > 084912210 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=084912210 $$$$