Basic Brown 16
INCI: BASIC BROWN 16
CAS 26381-41-9 EC 247-640-9
[8-[(p-Aminophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
[8-[(p-Aminophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride
Purpose
Function
Hair colorant (direct, non-oxidative azo dye)
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Banned
Safety
POOR
US
Permitted
Absorptionlow
Sensitizationmoderate
MoSadequate
NOAEL33 mg/kg
ConcernHigh
Flags
colorant
Verdict
Mutagenic with positive in vitro bacterial gene mutation and mammalian cell assays; contains azo bond with potential aromatic amine release; eye irritant; oral LD50 2-4 g/kg bw.
US Note
Coal tar hair dye exemption applies with required labeling
Assessment
Ratings
Reference