5-Chloro-2-methylaniline
CAS 95-79-4
EC 202-452-6
Formula C7H8ClN
MW 141.6 g/mol
Pigments & Colorants Personal Care & CosmeticsTextile, Leather & PaperPlastics & PolymersPrinting & Packaging Flame RetardancyCross-linking & Curing
Description
5-Chloro-2-methylaniline (CAS 95-79-4, EC 202-452-6) is an aromatic amine supplied under trade designations including Fast Red KB Base, Ansibase Red KB, and C.I. 37090. It carries no assigned E-code. The compound belongs to the chloromethylaniline family within the broader amine chemical category.
In textile and leather dyeing, it functions as an azo dye coupling component, reacting with diazonium salts directly on fiber to develop fast red shades. In polymer and plastics formulations, it acts as a crosslinker and curing agent, forming covalent bonds within resin matrices to improve thermal and mechanical resistance.
5-Chloro-2-methylaniline is subject to REACH registration requirements and is classified under HS code 29214300 for customs purposes. It is available in technical grade as a liquid-after-melting solid. Procurement teams should confirm current SDS documentation and regional regulatory status prior to ordering.
In textile and leather dyeing, it functions as an azo dye coupling component, reacting with diazonium salts directly on fiber to develop fast red shades. In polymer and plastics formulations, it acts as a crosslinker and curing agent, forming covalent bonds within resin matrices to improve thermal and mechanical resistance.
5-Chloro-2-methylaniline is subject to REACH registration requirements and is classified under HS code 29214300 for customs purposes. It is available in technical grade as a liquid-after-melting solid. Procurement teams should confirm current SDS documentation and regional regulatory status prior to ordering.
Physical Properties
| 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.) |
Safety & Handling (Learn More)
Warning GHS07 GHS08 GHS09
H
H302H312H315H319H320H335H351H411H302+H312
P
P203P261P264P270P271P273P280P317P318P319P321P330P391P405P501P264+P265P301+P317P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| 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 |
Other Names
5-chloro-O-toluidinec.i. 37090Ansibase Red KBFAST RED KB BASEPharmazoid Red KBSpectrolene Red KB
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Raw Materials
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