4-Amino-m-Cresol

AKA: 4-Amino-3-methylphenol, 2835-99-6, Phenol, 4-amino-3-cresol, 4-hydroxy-6-methylaniline, 3-methyl-p-aminophenol, 4-OH-6'-methylalanine, 4-Amino-3-methyl phenol, 4-hydroxy-6'-methylalanine
Synthetic
Not Clean
4-hydroxy-6-methylaniline is a substituted aniline in which the aniline ring carries 4-hydroxy and 6-methyl substituents; a urinary metabolite of lidocaine. It has a role as a drug metabolite. It is a member of phenols and a substituted aniline.
Formula
C7H9NO
Mol. Weight
123.15
CAS #
2835-99-6
Form
Powder
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic hair dye ingredient developed in the early 20th century. Created as a component in permanent hair coloring systems to produce various brown tones.
EWG
6
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
Not an Irritant
ewg-6
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 1.05%. Source: CIR Safety Assessment (CIR Seq 908).
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed4 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR