preferred_name: 2 a 1-acylglycerol => a 1,2-diacylglycerol + glycerol
preferred_name_lc: 2 a 1-acylglycerol => a 1,2-diacylglycerol + glycerol
label: 2 a 1-acylglycerol => a 1,2-diacylglycerol + glycerol
label_lc: 2 a 1-acylglycerol => a 1,2-diacylglycerol + glycerol