2-Naphthalenecarboxamide, 4,4'-(1,2-ethanediylbis(iminosulfonyl(6-methoxy-3,1-phenylene)azo))bis(N-(5-chl oro-2,4-dimethoxyphenyl)-3-hydroxy- 2-Naphthalenecarboxamide, 4,4'-(1,2-ethanediylbis(iminosulfonyl(6-methoxy-3,1-phenylene)azo))bis(N-(5-chloro-2,4-dimethoxyphenyl)-3-hydroxy- 4,4'-(Ethylenebis(iminosulphonyl(6-methoxy-m-phenylene)azo))bis(5'-chloro-3-hydroxy-2',4'-dimethoxynaphth-2-anilide) 4627-26-3 EINECS 225-040-8