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2,2′-Benzidinedisulfonic acid117-61-331 % similar Gentisic acid490-79-931 % similar 4,6-Diamino-1,3-benzenedisulfonic acid137-50-831 % similar Phenyl J acid119-40-431 % similar 4,4'-Dihydroxy-7,7'-ureylenedi(naphthalene-2-sulphonic acid)134-47-431 % similar EDANS50402-56-731 % similar Sulfosalicylic acid dihydrate5965-83-331 % similar 5-Amino-2-(phenylamino)benzenesulfonic acid91-30-531 % similar 2-Amino-5-methoxybenzenesulfonic acid13244-33-231 % similar Aniline-2,4-disulfonic acid137-51-930 % similar Xylenesulfonic acid25321-41-930 % similar Metol55-55-030 % similar 2-Amino-4,5-dimethylbenzenesulfonic acid56375-83-830 % similar 2,5-Diaminobenzenesulfonic acid88-45-930 % similar 2,4-Diaminobenzenesulfonic acid88-63-130 % similar 2′,4′-Dihydroxyacetophenone89-84-930 % similar 2-Amino-1,4-benzenedisulfonic acid98-44-230 % similar 2,4,5-Trichlorobenzenesulfonic acid6378-25-230 % similar 2,4-Dihydroxybenzaldehyde95-01-230 % similar 2-Amino-1-naphthol-4-sulfonic acid567-13-530 % similar