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                                                  3,4-Dihydroxybenzonitrile
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                                                  Cyanogen bromide
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                                                  3,4-Dihydroxybenzophenone
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                                                  5,8-Dimethoxy-[1,2,4]triazolo[1,5-c]pyrimidin-2-amine
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                                                  5,5-Dimethyl-1,3-oxazolidine-2,4-dione
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                                                  3-Isochromanone
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                                                  2,2'-bipyridine; 2,2'-dipyridyl
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                                                  6-methylpyridine-2,4-diol
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                                                  5-AMINO-4-CHLORO-3-METHYLISOXAZO
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                                                  6-hydroxy-3-methylpicolinic acid
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                                                  ethyl 2-methyl-5-nitronicotinate
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                                                  methyl 4,6-dihydroxynicotinate
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                                                  2-Aminobenzenesulfonic acid (1-methylethylidene)di-4,1-phenylene ester
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                                                  2-Aminobenzenesulfonic acid (1-methylethylidene)di-4,1-phenylene ester
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