Basic violet 2 - Descrizione

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Basic violet 2

"Descrizione"
by admin (19534 pt)

2026-Jan-19 11:14

Basic violet 2: properties, uses, pros, cons, safety, alternatives

Basic violet 2 (CI 42520) is a synthetic triphenylmethane violet dye. Triphenylmethane is a hydrocarbon.

Chemical Name:

[4-[bis(4-amino-3-methylphenyl)methylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]azanium;chloride

What it is used for and where

Cosmetics

Restricted cosmetic ingredient as IV/67 (CI 42520) III/278 (Basic Violet 2) a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009. Substance or ingredient reported: 4-[(4-Amino-m-tolyl)(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-o-toluidine monohydrochloride

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.
Hair dyeing. It is an ingredient that adds a colouring to the hair that can be temporary, semi-permanent or permanent depending on what other ingredients are added to achieve the result. The pH for hair dyeing is generally between 9 and 10.

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.

Alternatives

Option (INCI)	Product type	Key advantages
CI 60725 (Violet 2)	Direct dye (violet)	Close shade option for some uses; assess based on regulatory allowances and the target matrix (hair vs cosmetics).
CI 42535 (Basic Violet 3)	Basic dye (violet)	Very intense violet widely used (e.g., hair dyes); always verify category-specific restrictions and compliance.
CI 45170 (Basic Red 51)	Basic dye (red-violet)	Useful to build magenta/violet shades via blends, good fiber affinity; confirm use levels and restrictions.
CI 77007 (Ultramarines)	Mineral/inorganic pigment (blue)	Good stability for blue-violet tones in makeup; colors by deposition rather than true hair-fiber dyeing.
Mica (CI 77019) + CI 77007 (Ultramarines)	Effect/pearlescent system	Enables brighter pearly violets with improved slip and payoff in powders/eye products; not a 1:1 substitute for hair dyes.