2,2'-(1,2-Ethenediyl)bis[5-((4-ethoxyphenyl)azo]benzenesulfonic acid) and its salts, when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 2870-32-8
EINECS / EC 220-698-2
CosIng Ref 31109
Chemical Name disodium;5-[(4-ethoxyphenyl)diazenyl]-2-[(E)-2-[4-[(4-ethoxyphenyl)diazenyl]-2-sulfonatophenyl]ethenyl]benzenesulfonate
IUPAC Name —
Formula C30H26N4Na2O8S2
Mol. Weight 680.7 g/mol
InChIKey YQMJDPHTMKUEHG-ZNBXPSQRSA-L
Function & Classification
EU Regulatory Status
SCCS Opinion View SCCS opinion →
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 2,2'-(1,2-Ethenediyl)bis[5-((4-ethoxyphenyl)azo]benzenesulfonic acid) 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