4-[(4-Ethoxyphenyl)azo]naphthol (Solvent Red 3; CI 12010) and its salts, when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 6535-42-8
EINECS / EC 229-439-8
CosIng Ref 87708
Chemical Name 4-[(4-ethoxyphenyl)diazenyl]naphthalen-1-ol
IUPAC Name —
Formula C18H16N2O2
Mol. Weight 292.3 g/mol
InChIKey JSEYDVLGSMLKDL-UHFFFAOYSA-N
Function & Classification
EU Regulatory Status
Safety Profile
No toxicology data available yet for this ingredient.
Check SCCS opinions or CIR reports for published safety assessments.
NOAEL · Dermal Absorption % · Sensitization
Formulation Guidelines
Usage level, pH range, solubility and addition phase not yet available.
Usage Level % · Addition Phase · Solubility
Suppliers & Documents
No verified suppliers listed for this ingredient yet.
Are you a supplier of 4-[(4-Ethoxyphenyl)azo]naphthol (Solvent Red 3; CI 12010) and its salts, when used as a substance in hair dye products? Register as a supplier to add your listing and upload TDS & SDS documents.
Documents