Basic Yellow 57
INCI: BASIC YELLOW 57
CAS 68391-31-1 EC 269-943-5
3-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride (CI 12719)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
3-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-N,N,N-trimethylanilinium chloride (CI 12719)
Purpose
Function
Hair dyeing (semi-permanent cationic dye)
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Restricted
Safety
GOOD
US
Permitted
Absorptionlow
Sensitizationlow
MoSadequate
NOAEL11.1 mg/kg
ConcernLow
Flags
eu_children_restrictedeu_cosing_listed
Verdict
No systemic toxicity concerns at current use levels; restricted under EU Annex III with concentration limits.
US Note
CIR Expert Panel concluded safe for use as a hair dye at present practices of use and concentration
Assessment
Ratings
Reference