Ingredient

Acid Red 51

✓ EU Allowed

Identification

CAS Number 16423-68-0
EINECS / EC 240-474-8
CosIng Ref 30485
Chemical Name Disodium 2-(2,4,5,7-tetraiodo-6-oxido-3-oxoxanthen-9-yl)benzoate and its insoluble barium, strontium and zirconium lakes, salts and pigments
Formula C20H8I4O5
Mol. Weight 835.9 g/mol

Function & Classification

Primary Function Colorant
Secondary Functions HAIR DYEING
Origin Synthetic
Category Colorants & Pigments

EU Regulatory Status

🇪🇺
✓ Allowed — EU Reg. 1223/2009 IV
Conditions of Use Purity criteria as set out in Commission Directive 95/45/EC (E 127)

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

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