preferred_name: 2-glyceryl-prostaglandin H2 <=> 2-glyceryl-prostaglandin E2
preferred_name_lc: 2-glyceryl-prostaglandin h2 <=> 2-glyceryl-prostaglandin e2
label: 2-glyceryl-prostaglandin H2 <=> 2-glyceryl-prostaglandin E2
label_lc: 2-glyceryl-prostaglandin h2 <=> 2-glyceryl-prostaglandin e2