| 4531-49-1 | Pigment Yellow 17 | C34H30Cl2N6O6 |
| 4531-45-7 | 1-[2-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl]-1,1-dimethylhydrazinium chloride | C18H24 Cl N6 O2 . Cl |
| 4531-53-7 | 5-Chloro-1-methyl-1H-imidazole nitrate | C4H5ClN2.HNO3 |
| 4531-79-7 | 3-NITRODIPHENYLAMINE | C12H10N2O2 |