Ingredient

1H-Indole-5,6-diol

⚠ EU Restricted

Identification

CAS Number 3131-52-0
EINECS / EC 412-130-9
CosIng Ref 91042
Chemical Name 1H-indole-5,6-diol
IUPAC Name
Formula C8H7NO2
Mol. Weight 149.15 g/mol
InChIKey SGNZYJXNUURYCH-UHFFFAOYSA-N

Function & Classification

Primary Function HAIR DYEING

EU Regulatory Status

🇪🇺
⚠ Restricted — EU Reg. 1223/2009 III
Conditions of Use To be printed on the label: Hair colorants can cause severe allergic reactions.

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

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Documents

External Resources