5-Amino-4-Chloro-o-Cresol

5-Amino-4-Chloro-o-Cresol molecular structure
molecular structure · PubChem
AKA: 110102-86-8, Phenol, 2-Methyl-4-chloro-5-aminophenol, 2-Methyl-5-amino-4-chlorophenol, 3-Amino-4-chloro-6-methylphenol, 5-Amino-4-chloro-o-cresol [INCI]
Synthetic
Not Clean
5-Amino-4-chloro-2-methylphenol
Formula
C7H8ClNO
Mol. Weight
157.60
CAS #
110102-86-8
Form
Powder
Functions
Hair Dyeing
Colors Hair
Traditional Use
Synthetic hair dye intermediate developed mid-20th century as part of modern oxidative hair coloring systems. Designed to replace natural plant-based dyes with more stable, permanent color options.
EWG
4
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
Not an Irritant
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 1.05%. Source: CIR Safety Assessment (CIR Seq 908).
Regulatory Status
USA✔ permitted
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR