1,2-Dipalmitoyl-3-Oleoyl-rac-glycerol (Synonyms: 1,2-Palmitin-3-Olein, TG(16:0/16:0/18:1))

1,2-Dipalmitoyl-3-oleoyl-rac-glycerol is a triacylglycerol that contains palmitic acid at the sn-1 and sn-2 positions and oleic acid at the sn-3 position. It has been found in Apiaceae seed oils, lard, and tallow, as well as palm oil, olein, and stearin.1,2 1,2-Dipalmitoyl-3-oleoyl-rac-glycerol has been used as a substrate to determine the regioselectivity and substrate specificity of lipases from Geotrichum species.3

References
1. Ngo-Duy, C.-C., Destaillats, F., Keskitalo, M., et al. Triacylglycerols of Apiaceae seed oils: Composition and regiodistribution of fatty acids. Eur. J. Lipid Sci. Technol. 111(2), 164-169 (2009).
2. Kallio, H., Yli-Jokipii, K., Kurvinen, J.-P., et al. Regioisomerism of triacylglycerols in lard, tallow, yolk, chicken skin, palm oil, palm olein, palm stearin, and a transesterified blend of palm stearin and coconut oil analyzed by tandem mass spectrometry. J. Agric. Food Chem. 49(7), 3363-3369 (2001).
3. StrÁnsky, K., ZarevÚcka, M., KejÍk, Z., et al. Substrate specificity, regioselectivity and hydrolytic activity of lipases activated from Geotrichum sp. Biochem. Eng. J. 34(3), 209-216 (2007).