2-Amino-6-methoxybenzothiazole 4.4'-DIAMINODIPHENYLAMINESULFATE Pigment Red 32 Tartrazine 1-Nitroso-2-naphthol Acid Red 27 ACID YELLOW 11 Fluorescent brightener No.31 fluorescent whitening agent RA ACID BLUE 113 Acid Red 18 ACETARSONE Dimethylglyoxime 3-Amino-2-naphthoic acid 2-Nitrophenol 2,6-Dimethyl-1-nitrobenzene N-Acetylsulfanilyl chloride Hyodeoxycholic acid Sunset Yellow FCF 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid Dithizone Potassium Phosphate Monobasic 2-NAPHTHYLAMINE-4,6,8-TRISULFONIC ACID Acenaphthenequinone Basic Yellow 24 Sodium polydithio-dipropyl sulfonate Metanilic acid 2-Nitroso-1-naphthol 4-METHOXYPHENYLTHIOUREA Sodium hydrogen difluoride 4-Nitrophenol 4-Nitro-1,8-Naphthalenedicarboxylic Acid 2-Naphthol

2,3,5-Triphenyltetrazolium chloride Carmine Fast Red TR salt 1,5-Naphthalenedisulfonate salt Direct Red 75 tetrasodium salt Tetrazolium Violet Acid Red 94 Neutral Red FUCHSIN BASIC Methyl Red sodium salt 4-NITROBENZENEDIAZONIUM TETRAFLUOROBORATE Tetrazolium Blue Chloride FAST RED RC SALT DIRECT RED 80 Fuchsin Acid Congo Red Methyl Red Phenol Red sodium salt CI 37085

Congo red test paper

Congo red paper

Congo test red paper