1,3:2,4-Bis-O-[(4-methylphenyl)methylene]-D-glucitol 1-Dodecanoate-d22 is isotope labelled intermediate in the synthesis of (2R)-Sorbitan Monolauric Acid Ester-d23 (S677002), an labelled (2R)-Sorbitan monolauric acid ester (S677000) which is a lipophilic nonionic surfactant that is used as an emulsifying agent in the preparation of emulsions, creams, and ointments for pharmaceutical and cosmetic use.