Basic Brown 17
INCI: BASIC BROWN 17
CAS 16581-71-8 EC 269-944-0
[8-[(4-Amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride (CI 12251)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
[8-[(4-Amino-3-nitrophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride (CI 12251)
Purpose
Function
Hair colorant (direct, non-oxidative azo/nitro dye)
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Banned
Safety
POOR
US
Permitted
Absorptionlow
Sensitizationlow
MoSadequate
NOAEL46 mg/kg
ConcernHigh
Flags
colorant
Verdict
Contains azo bond and nitro group with potential for aromatic amine release under reductive conditions. Restricted to non-oxidative hair dye use only; any other cosmetic use is non-compliant.
US Note
Coal tar hair dye exemption applies with required caution labeling
Assessment
Ratings
Reference