Amines
REACH
5-chloro-2-methylaniline
CAS Number
95-79-4
EC Number
202-452-6
What is 5-chloro-2-methylaniline?
5-Chloro-2-methylaniline (CAS 95-79-4), also known as 5-chloro-o-toluidine and 2-amino-4-chlorotoluene, is an aromatic amine intermediate used in the synthesis of azo dyes, pigments, and specialty chemicals.
Where is 5-chloro-2-methylaniline used?
- Textile and leather dyeing: diazonium coupling precursor for azo dye production
- Pigment manufacturing: organic pigments for printing inks and packaging coatings
- Polymer and plastics processing: cross-linking and curing systems
- It serves as a building block for colorant and polymer systems.
Good to know: Personal care formulators sourcing approved colorant intermediates may evaluate it for cosmetic dye synthesis, subject to regional regulatory compliance.
Commercial specifications
- Technical grade is the standard commercial offering; high-purity grades are available for sensitive synthesis applications.
- Bulk and drum quantities are typical for industrial procurement, with smaller packaging available for laboratory use.
Other Names (Synonyms)
5-CHLORO-O-TOLUIDINE|2-Amino-4-chlorotoluene|2-Methyl-5-chloroaniline|3-Chloro-6-methylaniline|Fast Red KB base|Benzenamine, 5-chloro-2-methyl-|Ansibase Red KB|5-Chloro-2-methylbenzenamine
What are the physical properties of 5-chloro-2-methylaniline?
Melting Point 26 °C
Boiling Point 237 °C @ Press: 722 Torr
Density 1.177 g/cm³ @ Temp: 20 °C
Flash Point 320 °F
Appearance The chloromethylanilines are colorless or white crystalline solids or liquids, some have a mild fishy odor.
Color Clear yellow to light brown
Form Liquid After Melting
Water Solubility < 1 g/L (22 ºC)
Vapor Pressure 0.45 hPa (50 °C)
Refractive Index n 20/D 1.584(lit.)
How is 5-chloro-2-methylaniline classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H302 Harmful if swallowed
H312 Harmful in contact with skin
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to 5-chloro-2-methylaniline?
HS Code 29214300
UN Number 3429
ADR Class 6.1
Packing Group III
Storage Class 6.1C - Combustible, acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 3