Polymorphism of 1-behenoyldistearin and 2-stearoyldibehenin

The triglyceride 1 -behenoyldistearin shows α-2, β-2, β′-2 and β-3 forms in order of increasing stability. The previously unobserved β-2 form of the closely related homolog 1-stearoyldimyristin has now been observed on crystallization from hexane. The triglyceride 2-stearoyldibehenin shows an α-2 form and two modifications of β′-2 type. No β-3 form was observed such as has been previously observed for the related homolog 2-myristoyldistearin.