CI 42735  (Acid Blue 104) is a synthetic triphenylmethane blue dye. Triphenylmethane is a hydrocarbon.

Chemical Name: Hydrogen [4-[[4-(diethylamino)phenyl][4-[ethyl[(3-sulphonatobenzyl)amino]-o-tolyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt

What it is used for and where

Cosmetics

Restricted cosmetic ingredient as IV/68 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported: Hydrogen [4-[[4-(diethylamino)phenyl][4-[ethyl[(3-sulphonatobenzyl)amino]-o-tolyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt

Cosmetics - INCI Functions

Colorant. This ingredient has the function of colouring the solution in which it is inserted in a temporary, semi-permanent or permanent manner, either alone or in the presence of the complementary components added for colouring.

Safety

It is an ingredient that has some important health-related contraindications: it should not come into contact with mucous membranes.

Molecular Formula  C₄₃H₄₉N₃NaO₆S₂⁺

Molecular Weight  791.0 g/mol

CAS   6505-30-2

EC number    229-390-2

DTXSID70904405

Synonyms: 

C.I. Acid Blue 104

Acid Blue 104