2-Amino-3-Hydroxypyridine

2-Amino-3-Hydroxypyridine molecular structure
molecular structure · PubChem
AKA: 16867-03-1, 2-Amino-3-pyridinol, 3-Pyridinol, 3-Hydroxy-2-pyridinamine, 3-HYDROXY-2-AMINOPYRIDINE, JAROCOL 2A3HP, RODOL 2A3PYR
Synthetic
Not Clean
2-amino-3-hydroxypyridine is a monohydroxypyridine and an aminopyridine.
Formula
C5H6N2O
Mol. Weight
110.11
CAS #
16867-03-1
Form
Powder
Functions
Hair Dyeing
Antioxidant Protection
Colors Hair
Traditional Use
A synthetic heterocyclic compound developed as a hair dye intermediate in the 20th century. It was created to expand the color palette available in oxidative hair coloring systems.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
ewg-4
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
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