Basic Violet 2
INCI: BASIC VIOLET 2
CAS Verify independently — CI 42520 confirmed (commonly referenced as 3248-91-7) EC 221-831-7
Benzenamine, 4-((4-amino-3-methylphenyl)(4-imino-3-methyl-2,5-cyclohexadien-1-ylidene)methyl-2-methyl, HCl (CI 42520)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
Benzenamine, 4-((4-amino-3-methylphenyl)(4-imino-3-methyl-2,5-cyclohexadien-1-ylidene)methyl-2-methyl, HCl (CI 42520)
Purpose
Function
Hair dyeing (non-oxidative and oxidative); colorant for brief skin contact
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Restricted
Safety
MODERATE
US
Permitted
EU Max Concentration0.5%
Absorptionlow
Sensitizationlow
MoSnot established
ConcernModerate
Flags
colorant
Verdict
Basic Violet 2 (CI 42520) is restricted in EU for hair dye use with a 0.5% maximum concentration. Contains o-toluidine impurity (Category 1B carcinogen), but SCCS determined concentration would present no concern in hair dye formulations. Stable in hydrogen peroxide (98.9% recovery at 60 min). Listed under both Annex III (hair dyes) and Annex IV (colorants). Permitted in US but not approved as general FDA color additive. Intended use category must be confirmed.
US Note
Not an FDA-approved color additive for general cosmetic use
Assessment
Ratings
Reference