Colorant

Basic Red 22

INCI: BASIC RED 22
CAS 12221-52-2
5-(4'-dimethylaminophenylazo)-1,4-dimethyl-triazolium chloride
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

5-(4'-dimethylaminophenylazo)-1,4-dimethyl-triazolium chloride

Purpose

Function

Hair Dyeing
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Restricted
Absorptionmoderate
Sensitizationhigh
MoSnot established
ConcernHigh
Flags
eu_banned_cosmeticseu_cosing_listed
Verdict

Azo dye that can undergo reductive cleavage to release dimethylaminoaniline; explicitly prohibited under EU Regulation 1223/2009 Annex II; not approved as a cosmetic color additive in the US.

US Note

Not approved as cosmetic color additive

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
12221-52-2
INCI
BASIC RED 22
Category
Colorant
Updated
Apr 2, 2026