2,4,5-TRIMETHYLANILINE

CAS NO.：137-17-7
Empirical Formula: C9H13N
Molecular Weight: 135.21
MDL number: MFCD00025201
EINECS: 205-282-0
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 05:57:07

What is 2,4,5-TRIMETHYLANILINE?

Chemical properties

white to light tan crystalline solid

The Uses of 2,4,5-TRIMETHYLANILINE

Manufacture of dyes, organic synthesis.

Definition

ChEBI: 2,4,5-Trimethylaniline is a substituted aniline.

General Description

White crystals or beige powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2,4,5-TRIMETHYLANILINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Hazard

Questionable carcinogen.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition 2,4,5-TRIMETHYLANILINE emits toxic fumes of nitrogen oxides.

Fire Hazard

Flash point data for 2,4,5-TRIMETHYLANILINE are not available; however, 2,4,5-TRIMETHYLANILINE is probably combustible.

Safety Profile

Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx. Used as a dye, pigment, and printing ink. See also ANILINE DYES.

Properties of 2,4,5-TRIMETHYLANILINE

Melting point:	62 °C
Boiling point:	232 °C
Density	0.78 g/mL
refractive index	1.5130 (estimate)
Flash point:	-5 °C
storage temp.	Keep in dark place,Inert atmosphere,2-8°C
pka	5.01±0.10(Predicted)
color	White to pink
Water Solubility	1.5g/L(28.70 ºC)
BRN	2352436
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference	137-17-7(CAS DataBase Reference)
NIST Chemistry Reference	Benzenamine, 2,4,5-trimethyl-(137-17-7)
IARC	3 (Vol. 27, Sup 7) 1987
EPA Substance Registry System	2,4,5-Trimethylaniline (137-17-7)

Safety information for 2,4,5-TRIMETHYLANILINE

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H225:Flammable liquids H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.