Synonyms:
1,1''-bis(4-sulfophenyl)-5,5''-dihydroxy-3,3'',a-trimethylpyrazolo-4,4''-trimethine oxonole tripotassium salt ; dye psk 77 ; 1,1'-bis(4-sulfophenyl)-5,5'-dihydroxy-3,3',a-trimethylpyrazolo-4,4'-trimethine oxonole tripotassium salt ; 1,1'-bis(4-sulfophenyl)-5,5'-dihydroxy-3,3',alpha-trimethylpyrazolo-4,4'-trimethineoxonoletripotassiumsalt ; 1,1'-bis(4-sulfophenyl)-5,5'-dihydroxy-a,3,3'-trimethylpyrazolo-4,4'-trimethine oxonole tripotassium salt ; 1-p-sulfophenyl-3-methyl-4-(1-methyl-3-(1-sulfophenyl-3-methyl-5-oxo-pyrazolidine-4-yliden)-prop-1-en-1-yl)-pyrazoline-5-oxide-tripotassium salt