2,4-Diaminophenol
molecular structure · PubChem
AKA: 95-86-3
Synthetic
Safety Concern
Not Clean
On the basis of the data included in this report, the CIR Expert Panel concludes that 2,4-Diaminophenol and 2,4-Diaminophenol Dihydrochloride are safe for use in hair dyes at concentrations up to 0.2% (as the free base). 2009 RE-REVIEW - The Expert Panel noted that 2,4-Diaminophenol Dihydrochloride is now termed 2,4-Diaminophenol Hydrochloride.
Formula
C6H8N2O
Mol. Weight
124.14
CAS #
95-86-3
Form
Powder
Functions
Hair Dyeing
Locks In Moisture
Colors Hair
Traditional Use
A synthetic aromatic amine developed in the early 20th century for use as an oxidative hair dye intermediate. It was designed to replace plant-based dyes and create permanent hair color through oxidation processes.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR