... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > lipid > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > organooxygen compound > ester > phosphoric ester > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > organooxygen compound > ester > phosphoric ester > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organochalcogen compound > organooxygen compound > ester > phosphoric ester > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxoacid derivative > phosphorus oxoacid derivative > phosphoric acid derivative > phosphoric ester > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > phosphorus molecular entity > phosphorus oxoacids and derivatives > phosphorus oxoacid derivative > phosphoric acid derivative > phosphoric ester > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxoacid derivative > phosphorus oxoacid derivative > phosphoric acid derivative > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > phosphorus molecular entity > phosphorus oxoacids and derivatives > phosphorus oxoacid derivative > phosphoric acid derivative > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxoacid derivative > phosphorus oxoacid derivative > phosphoric acid derivative > phosphate > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > phosphorus molecular entity > phosphorus oxoacids and derivatives > phosphorus oxoacid derivative > phosphoric acid derivative > phosphate > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > phosphorus molecular entity > organophosphorus compound > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organophosphorus compound > organic phosphate > phospholipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > lipid > glycerolipid > glycerophospholipid > phosphatidic acid > PA(18:0/22:4)