1,3-Distearoyl-2-lauroyl glycerol is a triacylglycerol that contains stearic acid at the sn-1 and sn-3 positions and lauric acid at the sn-2 position. It has been found in butterfat.1
References
1. Kalo, P., Kemppinen, A., and Ollilainen, V. Determination of triacylglycerols in butterfat by normal-phase HPLC and electrospray-tandem mass spectrometry Lipids 44(2),169-195(2009).