Acetic acid, dichloro-, 5-[(dichloroacetyl)amino]-2,4-bis[[4-[(2-thiazolylamino)sulfonyl]phenyl]azo]-1-naphthalenyl ester, compd. with 4,4',4''-methylidynetris(N,N-dimethylbenzenamine) monohydrochloride (1:1) Acetic acid, dichloro-, 5-[(dichloroacetyl)amino]-2,4-bis[[4-[(2-thiazolylamino)sulfonyl]phenyl]azo]-1-naphthalenyl ester, compd. with 4,4',4''-methylidynetris[N,N-dimethylbenzenamine] monohydrochloride (1:1) Acetic acid, dichloro-, 5-[(dichloroacetyl)amino]-2,4-bis[[4-[(2-thiazolylamino)sulfonyl]phenyl]azo]-1-naphthalenyl ester, compd. with 4,4',4''-methylidynetris[N,N-dimethylbenzenamine]monohydrochloride (1:1) NSC306663