HC Yellow No. 2

HC Yellow No. 2 molecular structure
molecular structure · PubChem
AKA: 4926-55-0, 2-((2-Nitrophenyl)amino)ethanol, 2-[(2-nitrophenyl)amino]ethanol, Ethanol, Jarocol Yellow 2, Colorex HCY2, Covariane Jaune W 1122
Synthetic
Not Clean
2-[(2-Nitrophenyl)amino]ethanol
Formula
C8H10N2O3
Mol. Weight
182.18
CAS #
4926-55-0
Form
Powder
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic aromatic dye developed for hair care cosmetics in the mid-20th century to provide yellow tones in semi-permanent and temporary hair color products.
EWG
6
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
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-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR