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(1,1'-Biphenyl)-4-sulfonic acid2113-68-039 % similar 2-Aminobenzene-1,4-sulfonic acid monosodium salt24605-36-539 % similar S Acid83-64-739 % similar 6-Aminopyridine-3-sulfonic acid16250-08-139 % similar 2-Amino-4,5-dichlorobenzenesulfonic acid6331-96-039 % similar 2,5-Diaminobenzenesulfonic acid88-45-939 % similar 2,4-Diaminobenzenesulfonic acid88-63-139 % similar 2-Naphthylamine-4,8-disulfonic acid131-27-139 % similar 3-Nitrobenzenesulfonic acid98-47-539 % similar 4-Hydrazinobenzenesulfonic acid98-71-538 % similar 4-Aminoazobenzene-4′-sulfonic acid104-23-438 % similar 4-Amino-2,5-dichlorobenzenesulfonic acid88-50-638 % similar Phenyl γ-acid119-19-738 % similar Phenyl J acid119-40-438 % similar 2-Amino-1,5-naphthalenedisulfonic acid sodium salt19532-03-738 % similar 1,2-Phenylenediamine sulfate74710-09-138 % similar Armstrong's acid81-04-938 % similar 4-Hydroxybenzenesulfonic acid98-67-938 % similar Disodium 1,6-naphthalenedisulfonate1655-43-238 % similar 5-Aminoisoquinoline1125-60-638 % similar