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5-Amino-1-naphthol83-55-631 % similar N-Acetyl-DL-tryptophan87-32-131 % similar 1-[4-(1H-Indol-3-yl)-1(4H)-pyridinyl]ethanone34981-12-931 % similar 2-Mercaptophenol1121-24-031 % similar Indole120-72-931 % similar 2-Fluorophenol367-12-431 % similar 2-Iodophenol533-58-431 % similar O-Cresol95-48-731 % similar 2-Aminophenol95-55-631 % similar 2-Chlorophenol95-57-831 % similar Serotonin50-67-931 % similar 4-Hydroxycoumarin1076-38-631 % similar 1-Amino-2-naphthol hydrochloride1198-27-231 % similar 1-Nitroso-2-naphthol131-91-931 % similar 4-Hydroxy-α-(4-hydroxy-1-naphthalenyl)-α-phenyl-1-naphthalenemethanol6948-88-531 % similar 1-Naphthol-4-sulfonic acid84-87-731 % similar (+)-Hypaphorine487-58-130 % similar 4-Methylindole16096-32-530 % similar 7-Hydroxyindole2380-84-930 % similar 5H-Benzo[b]carbazole243-28-730 % similar