A case of mistaken identity: Lupeol-3-(3′R)-hydroxy-stearate can be mistakenly identified as lupeol acetate when only analyzed by GC–MS

Abstract Lupeol-3-(3′ R -hydroxy)-stearate, also known as procrim b ( 1 ), was isolated from the methanolic stem extract of Pentalinon andrieuxii and initially mistaken as lupeol acetate when analyzed by GC–MS only. The correct structure of 1 was established following a careful analysis of its NMR and MS data.