Acid Blue 7 (CI 42080) is a synthetic triphenylmethane blue dye. Triphenylmethane is a hydrocarbon.

Chemical Name: sodium;4-[[4-[benzyl(ethyl)amino]phenyl]-[4-[benzyl(ethyl)azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,3-disulfonate

What it is used for and where

Cosmetics

Restricted cosmetic ingredient as IV/62 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported: Hydrogen (benzyl)[4-[[4-[benzylethylamino]phenyl](2,4-disulphonatophenyl)methylene]cyclohexa-2,5-dien-1-ylidene](ethyl)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 only be used in cosmetic products that have contact with the skin for a short time.

Molecular Formula    C₃₇H₃₅N₂NaO₆S₂

Molecular Weight  

CAS   3486-30-4

EC number 222-476-0

UNII 014OZV4W1O

DTXSID80881399

Synonyms: 

Acid Blue 7

Patent Blue A

Acid Turquoise Blue A

Fenazo bluexg

Patent Blue AF

Erio Glaucine X

Lake Blue AFX

Acid Sky Blue O