m-toluidine

CAS: 108-44-1

Overview

m-Toluidine (CAS 108-44-1 ), also known as m-aminotoluene, is an aromatic amine used as a chemical intermediate in the synthesis of dyes, pigments, and specialty organic compounds.

It serves as a building block for azo colorants and downstream chemical manufacturing across multiple industrial sectors. In textile and leather processing, it is used to produce azo dyes that deliver consistent color performance.

Pigment manufacturers rely on it as a coupling or diazotization component in the production of organic colorants for inks and printing formulations. This ensures high-quality results in various industrial printing applications.

In plastics and polymer systems, it functions as a curing agent or cross-linker in epoxy and resin formulations where controlled reactivity is required. This makes it essential for specialized material engineering.

Cosmetic and personal care manufacturers source it as a precursor in the synthesis of approved colorant intermediates used in hair dye formulations. Its chemical properties allow for precise color development.

m-Toluidine is supplied as a liquid at ambient conditions, typically available in technical grade for industrial synthesis applications. Standard packaging includes drums and intermediate bulk containers (IBCs).

These packaging options are suited for bulk procurement and large-scale manufacturing needs. Purity specifications generally range from 98% to 99%+, ensuring high performance in sensitive chemical reactions.

Documentation is available to support quality assurance and regulatory compliance requirements. This ensures that all industrial standards are met for safety and efficacy in global supply chains.

Physical Properties

Melting Point	-31.2 °C
Boiling Point	203.3 °C
Density	0.9889 g/cm³ @ Temp: 20 °C
Flash Point	186 °F
Appearance	Colorless liquid. Slightly soluble in water; soluble in alcohol or ether. Combustible.
Color	White
Odor	aromatic aniline-like odor
Form	Crystalline Solid or Liquid
Water Solubility	0.2 g/100 mL (20 ºC)
Vapor Pressure	0.3 hPa (20 °C)
Refractive Index	n 20/D 1.567(lit.)
pH	7 (H2O, 20℃)
Log P	1.4 at 25℃

Safety & Handling

Danger GHS06 GHS08 GHS09 GHS07 Hazard Statements H227 Combustible liquid H301 Toxic if swallowed H302 Harmful if swallowed H311 Toxic in contact with skin H313 May be harmful in contact with skin H315 Causes skin irritation H319 Causes serious eye irritation H331 Toxic if inhaled H361 Suspected of damaging fertility or the unborn child H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H301+H311+H331 Toxic if swallowed, in contact with skin or if inhaled Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29171990
UN Number	1708
ADR Class	6.1
Packing Group	II
Storage Class	6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)	2

Other Names

Industries

Printing & Packaging Plastics & Polymers Textile, Leather & Paper Personal Care & Cosmetics