Colorant

Basic Orange 2

INCI: BASIC ORANGE 2
CAS 532-82-1 EC 208-545-8
4-Phenylazophenylene-1,3-diamine monohydrochloride (CI 11270)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

4-Phenylazophenylene-1,3-diamine monohydrochloride (CI 11270)

Purpose

Function

Hair Dyeing
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Restricted
Absorptionhigh
Sensitizationhigh
MoSnot established
ConcernHigh
Verdict

Releases 2,4-diaminoaniline (mutagenic) and aniline on reductive cleavage; classified as a potential carcinogen; banned in textiles with skin contact under REACH Annex XVII

US Note

Not approved; coal-tar exemption potentially applicable with caution labeling

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
532-82-1
EC Number
208-545-8
INCI
BASIC ORANGE 2
Category
Colorant
Updated
Apr 2, 2026