AKA: 110102-85-7, 5-Amino-4-chloro-o-cresol hydrochloride, Phenol, Hydrochloride, 2-Methyl-4-chloro-5-aminophenol hydrochloride, 5-Amino-4-chloro-o-cresol HCl [INCI], Hydrochloride (1:1)
WHAT IS IT? 5-Amino-4-chloro-2-methylphenol hydrochloride
WHAT DOES IT DO? Traditional Use
Hydrochloride salt form of a synthetic hair colorant precursor created for improved stability and solubility in hair dye formulations during the 1950s-1970s development of modern permanent color systems.
IS IT CLEAN? Concentration Guide
Dermal absorption: 1%. Source: CIR Safety Assessment (CIR Seq 877).
Regulatory Status
JAPAN ✔ permitted
IS IT FOR ME? Pregnancy & Breastfeeding Safe
No
CAN I TRUST THIS? The paper trail
🔬 Peer-reviewed none on file
🛡️ Safety-assessed 1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR