Ingredient

mestranol

⚠ EU Restricted

Identification

CAS Number 72-33-3
EINECS / EC 200-777-8
CosIng Ref 81843
Chemical Name (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
IUPAC Name
Formula C21H26O2
Mol. Weight 310.4 g/mol
SMILES CC12CCC3C(C1CCC2(C#C)O)CCC4=C3C=CC(=C4)OC
InChIKey IMSSROKUHAOUJS-MJCUULBUSA-N

Function & Classification

EU Regulatory Status

🇪🇺
⚠ Restricted — EU Reg. 1223/2009 II

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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