Butyl Stearate
✓ EU AllowedIdentification
CAS Number 123-95-5
EINECS / EC 204-666-5
CosIng Ref 74752
Chemical Name butyl octadecanoate
IUPAC Name —
Formula C22H44O2
Mol. Weight 340.6 g/mol
SMILES CCCCCCCCCCCCCCCCCC(=O)OCCCC
InChIKey ULBTUVJTXULMLP-UHFFFAOYSA-N
Function & Classification
Primary Function Emollient
Secondary Functions FRAGRANCE; SKIN CONDITIONING
Origin Synthetic
Category Emollients & Esters
EU Regulatory Status
Safety Profile
Fungal Acne Trigger May trigger or worsen fungal acne (feeds Malassezia yeast). Avoid if prone to fungal folliculitis.
Comedogenic Rating: 2/5
Low-moderate risk — use caution if acne-prone
Skin Type Compatibility
Acne-Prone ~ Use Caution
Fungal Acne ✕ May Trigger
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
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Documents