2-Amino-6-Chloro-4-Nitrophenol
molecular structure · PubChem
AKA: 6358-09-4, 6-Chloro-4-nitro-2-aminophenol, RODOL 9R BASE, COLOREX 2A6C4NP
Synthetic
Not Clean
2-amino-6-chloro-4-nitrophenol
Formula
C6H5ClN2O3
Mol. Weight
188.57
CAS #
6358-09-4
Form
Powder
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic hair dye intermediate developed to provide specific color nuances in oxidative hair coloring. The chlorine substituent was added to modify color development and stability.
EWG
6
CIR
Safe as used
Pregnancy
No
CIR Safety Findings
ewg-6
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
2.0%
0%3%
Reg. Limit
EU regulatory limit: 2.0%. (a) To be printed on the label: The mixing ratio. ‘ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of... Source: EU Cosmetics Regulation (EC) 1223/2009, Annex III (Restricted Substances), Entry 252.
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
No
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR