TCI C1138 4-Chloro-3-nitroaniline (CAS 635-22-3) is a trifunctional aromatic building block bearing amino, nitro, and chloro substituents on a single benzene ring. The strongly electron-withdrawing nitro group activates the adjacent chlorine toward nucleophilic aromatic substitution, while the amino group supports acylation, sulfonylation, and diazotisation. Reduction of the nitro group affords ortho-phenylenediamine derivatives, giving efficient access to benzimidazole and quinoxaline scaffolds. AMI Scientific supplies this TCI product in a 25 g pack size for synthetic, pharmaceutical, and materials research laboratories in Indonesia.
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