Amines
REACH
4-chloro-2-nitroaniline
CAS Number
89-63-4
EC Number
201-925-4
What is 4-chloro-2-nitroaniline?
4-Chloro-2-nitroaniline (CAS 89-63-4), also known as p-Chloro-o-nitroaniline, is an aromatic amine intermediate used primarily in the synthesis of azo dyes and pigments.
Where is 4-chloro-2-nitroaniline used?
- Dye manufacturing: diazonium coupling precursor for colorants with specific hue and fastness
- Textile dyeing: key intermediate for azo dyes on cotton, wool, and synthetic fibers
- Printing inks: derived pigments for stable, high-opacity colors in packaging inks
- Leather finishing: azo colorants for surface dyes with rub and light fastness
- Paper coloring: specialty pigments where batch-to-batch color strength determines acceptance
Commercial specifications
- Purity typically 98% or higher by GC or HPLC
- Bulk quantities in fiber drums or multi-wall bags
- Smaller packaging options for laboratory and formulation development
Other Names (Synonyms)
2-Nitro-4-chloroaniline|p-Chloro-o-nitroaniline|Benzenamine, 4-chloro-2-nitro-|PCON|Red Salt Nbgl|Daito Red Base 3GL|4-Chloro-2-nitrobenzenamine|Fast Red 3GL Base
How is 4-chloro-2-nitroaniline classified and handled safely? Learn More
Danger
GHS06· Toxic GHS08· Health Hazard GHS09· Environmental Hazard GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed [Warning Acute toxicity, oral]
H315 Causes skin irritation [Warning Skin corrosion/irritation]
H373 May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
H401 Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
H411 Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]