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4-Aminotoluene-3-sulfonic acid

4-Amino-3-nitrobenzophenone

2-Amino-5-nitrobenzophenone

3-Amino-4-nitrobenzoic acid

N-Aminothiourea

2-Amino-3-nitrobenzoic acid

6-Aminothiouracil

2-Amino-5-nitrobenzoic acid

2-Amino-3-acetylpyridine

4-Amino-3-nitrobenzoic acid