Toluidine blue92-31-9100 % similar Methylene blue61-73-470 % similar Azure A531-53-367 % similar Methylene blue trihydrate7220-79-365 % similar Neutral red553-24-260 % similar Azure ii37247-10-257 % similar Azure B531-55-557 % similar Thionine581-64-644 % similar Safranin477-73-642 % similar Azure C531-57-739 % similar Acridine orange494-38-237 % similar Thionine acetate78338-22-432 % similar 5-Amino-1,3-dihydro-6-methyl-2H-benzimidazol-2-one67014-36-232 % similar Pyronine92-32-032 % similar 2,5-Dimethyl-P-phenylenediamine6393-01-732 % similar 2,4,5-Trimethylaniline137-17-731 % similar 4-(Ethylsulfonyl)-N1,N1-dimethyl-1,3-benzenediamine1220028-78-330 % similar