HC Red No. 7

AKA: 24905-87-1, 2-(4-Amino-3-nitroanilino)ethanol, 2-((4-Amino-3-nitrophenyl)amino)ethanol, IMEXINE FZ, COLOREX HCR7, Ethanol, 2-[(4-amino-3-nitrophenyl)amino]Ethanol
Synthetic
Not Clean
2-(4-Amino-3-nitroanilino)ethanol
Formula
C8H11N3O3
Mol. Weight
197.19
CAS #
24905-87-1
Form
Powder
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic aromatic amine dye created specifically for hair coloring in the 20th century to provide red coloration in semi-permanent hair color formulations.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUpermitted
JAPANpermitted
CANADApermitted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️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