AKA: 56932-44-6, Ethanol, HC YELLOW 5, N1-(2-Hydroxyethyl)-4-nitro-o-phenylenediamine, COLOREX HCY5, COVARIANE JAUNE W 1125 LP
Synthetic
Not Clean
OriginHC Yellow No. 5 is derived from aromatic hydrocarbon precursors within the azo dye chemical family. It is synthesized through diazotization and azo coupling reactions of aromatic amines and phenols.
2-(2-amino-4-nitroanilino)ethanol
Formula
C8H11N3O3
Mol. Weight
197.19
CAS #
56932-44-6
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Allergen Warning
⚠️ PPD (Hair Dye)
Functions
Hair Dyeing
Colors Hair
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not an Eye Irritant
1 study / 1 not irritating (CIR 357)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 357)
Skin Irritant in Testing
1 study / 1 irritating (CIR 357)
Dermal Absorption 0.054–0.124%
2 results from animal tests in the CIR safety assessment (CIR 357)
Concentration Guide
CIR's newest survey reports no concentration of use.
murphy