TCI C0710 4-Chloro-1,3-phenylenediamine, CAS 5131-60-2, is a chlorinated aromatic diamine used as a versatile precursor for nitrogen heterocycles and functional materials. Its two nucleophilic amino groups readily condense to form benzimidazoles and quinoxalines, while the chlorine substituent allows further substitution or cross-coupling chemistry. AMI Scientific supplies this TCI building block in 5 g and 25 g packs for heterocyclic synthesis, dye chemistry, and high-performance polymer research. Aromatic diamines are toxic, skin-absorbable, and air-sensitive, so handle them in a fume hood with gloves and store the container tightly closed, cool, dark, and preferably under inert gas.
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