1,3-Diarachidoyl glycerol is a diacylglycerol that contains arachidic acid at the sn-1 and sn-3 positions. It has been found in enzymatically randomized pig lard.1
References
1. Marikkar, J.M.N., Lai, O.M., Ghazali, H.M., et al. Compositional and thermal analysis of RBD palm oil adulterated with lipase-catalyzed interesterified lard Food Chem. 76(2),249-258(2002).