Synonyms: 2H-Pyran-2-one, 5-ethyl-5,6-dihydro-6-(2-hydroxy-4-methoxy-3,5-dimethyl-7-nonenyl)-, (5R-(5α,6α(2R*,3S*,4R*,5S*,7E)))-;2H-Pyran-2-one,5-ethyl-5,6-dihydro-6-[(2R,3S,4R,5S,7E)-2-hydroxy-4-methoxy-3,5-dimethyl-7-nonenyl]-,(5R,6R)- (9CI);(-)-Pironetin;NK 10958;NL 9C;PA 48153c;2H-Pyran-2-one,5-ethyl-5,6-dihydro-6-[(2R,3S,4R,5S,7E)-2-hydroxy-4-methoxy-3,5-dimethyl-7-nonen-1-yl]-,(5R,6R)-;(5R,6R)-5-Ethyl-6-[(2R,3S,4R,5S,7E)-2-hydroxy-4-methoxy-3,5-dimethylnon-7-en-1-yl]-5,6-dihydro-2H-pyran-2-one;