5-Chloro-2-methylaniline

The chloromethylanilines are colorless or white crystalline solids or liquids, some have a mild fishy odor.

clear yellow to light brown liquid after melting

5-Chloro-2-toluidine, is a versatile building block used for the synthesis of various pharmaceutical and biologically active compounds including inhibitors. It is a carcinogenic monocyclic amine. The compound is used in synthesizing dyes.

ChEBI: 5-Chloro-ortho-toluidine is a member of monochlorobenzenes.

Most of the isomers are used in dyestuff manufacture. The 3-chloro-para isomer is used to kill birds. It is marketed as pelleted bait for control of bird populations.

A bioassay for the possible carcinogenicity of 5-chloro-otoluidine was conducted using Fischer 344 rats and B6C3F1 mice. Groups of 50 male and 50 female rats and mice were given 5-chloro-o-toluidine in the diet at 2500 or 5000 ppm for rats and 2000 or 4000 ppm for mice. The compound was administered for 78 weeks to both rats and mice, followed by an observation period of up to 26 weeks for rats and 13 weeks for mice. Under the conditions of this bioassay, 5-chloro-otoluidine was carcinogenic to the mice, inducing hemangiosarcomas and hepatocellular carcinomas in both males and females. There was no conclusive evidence of the carcinogenicity of the compound in the rats.

UN2239 Chlorotoluidines, solid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. UN3429 Chlorotoluidines, liquid, Hazard Class: 6.1; Labels: 6.1- Poisonous materials

Incompatible with oxidizers, strong acids; chloroformates, and acid anhydrides, isocyanates, aldehydes forming fire and explosive hazards.

[1] Saim Topu. “Synthesis, characterization and antioxidant activities of some novel oxime derivatives.” Pharmacy Pharmacology International Journal 25 1 (2021).