AKA: 615-66-7, 2-Chloro-1, 4-diaminobenzene, 1, 4-Benzenediamine, 4-phenylenediamine, Ursol Brown O, 3-Chloro-4-aminoaniline, 4-Diamino-2-chlorobenzene, 4-benzenediamine, O-Chloro-p-phenylenediamine
Allergen Warning
⚠️ PPD (Hair Dye)
Synthetic
Not Clean
2-chloro-1,4-phenylenediamine is a diamine that is 1,4-phenylenediamine substituted at position 2 by a chloro group. It has a role as a dye. It is a diamine and a member of monochlorobenzenes. It is functionally related to a 1,4-phenylenediamine. It is a conjugate base of a 2-chloro-1,4-phenylenediaminium.
Formula
C6H7ClN2
Mol. Weight
142.58
CAS #
615-66-7
Form
Liquid
State
Solid; [MSDSonline]
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic aromatic amine developed as a hair dye intermediate in oxidative coloring systems. It was created in the 20th century as an alternative to plant-based dyes for permanent hair color.