1,3-Didocosanoyl-2-oleoyl-rac-glycerol is a triacylglycerol that contains docosanoic acid at the sn-1 and sn-3 positions and oleic acid at the sn-2 position. It has been found in cocoa butter and, when used as a seed material in dark chocolate, it increases the solidification rate and prevents fat bloom formation.1
References
1. Hachiya, I., Koyano, T., and Sato, K. Seeding effects on solidification behavior of cocoa butter and dark chocolate. II. Physical properties of dark chocolate. J. Am. Oil Chem. Soc. 66(12), 1763-1770 (1989).