Span 40
molecular structure · PubChem
AKA: SORBITAN MONOPALMITATE, Arlacel 40, 26266-57-9, Palmitate de sorbitan, Sorbitani palmitas, Sorbitan palmitate, INS NO.495
Synthetic
Emulsifier
Not Clean
Sorbitan monopalmitate is a small molecule drug. Sorbitan monopalmitate has a monoisotopic molecular weight of 402.3 Da.
Solubility Soluble at temperatures above its melting point in ethanol, methanol, ether, ethyl acetate, aniline, toluene, dioxane, petroleum ether and carbon tetrachloride. Insoluble in cold water but dispersible in warm water
Mol. Weight
402.60
State
Dry Powder; Pellets or Large Crystals
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Final Report on the Safety Assessment of Sorbitan Stearate, Sorbitan Laurate, Sorbitan Sesquioleate, Sorbitan Oleate, Sorbitan Tristearate, Sorbitan Palmitate, and Sorbitan Trioleate (Addended by repo
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
PEG-80 Sorbitan Palmitate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sorbitan Palmitate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
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Verified Jun 2026
Data: PubChem · CosIng