Ingredient

BASIC YELLOW 40

✓ EU Allowed

Identification

CAS Number 29556-33-0
EINECS / EC 249-694-9
CosIng Ref 54827
Chemical Name 7-(diethylamino)-3-(1,3-dimethylbenzimidazol-3-ium-2-yl)chromen-2-one chloride
IUPAC Name
Formula C22H24ClN3O2
Mol. Weight 397.9 g/mol
SMILES CCN(CC)C1=CC2=C(C=C1)C=C(C(=O)O2)C3=[N+](C4=CC=CC=C4N3C)C.[Cl-]
InChIKey LCVNGSHJQQOSDB-UHFFFAOYSA-M

Function & Classification

Primary Function HAIR DYEING

EU Regulatory Status

🇪🇺
✓ Allowed — EU Reg. 1223/2009

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