Cosmetic ingredient

CI 42090

CI 42090 is a dye in the triphenylmethane chemical class. This classification identifies its chemical family and places it among the colour ingredients used in cosmetic formulations.

INCICI3 products

CAS number

2650-18-2/ 37307-56-5/ 3844-45-9

EC number

-/ -/ 223-339-8

Chemical name

Dihydrogen (ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)]amino]-2'-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium, disodium salt

CI 42090: what it is

CI 42090 is a dye in the triphenylmethane chemical class. This classification identifies its chemical family and places it among the colour ingredients used in cosmetic formulations.

CI 42090: what it does in cosmetics

In a formula, CI 42090 functions as a colorant. Its hair-dyeing function identifies use in products intended to colour the hair, while the broader colorant function covers its role in adding colour to the product.

CI 42090: conditions and care

The use of CI 42090 must follow the regulatory references associated with entries IV/63 for CI 42090 and III/190 for Acid Blue 9, its salts and the aluminium lake form.

Use limits