preferred_name: 1-octadecanoyl-sn-glycero-3-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-3-phospho-(1'-sn-glycerol) => 2 1-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)
preferred_name_lc: 1-octadecanoyl-sn-glycero-3-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-3-phospho-(1'-sn-glycerol) => 2 1-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)
label: 1-octadecanoyl-sn-glycero-3-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-3-phospho-(1'-sn-glycerol) => 2 1-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)
label_lc: 1-octadecanoyl-sn-glycero-3-phospho-(3'-octadecanoyl-1'-sn-glycerol) + sn-glycero-3-phospho-(1'-sn-glycerol) => 2 1-octadecanoyl-sn-glycero-3-phospho-(1'-sn-glycerol)