Synonyms: (+)-12-Oxocalanolide A;12-Oxocalanolide;183904-55-4;NSC670365;trans-(+)-2H,6H,12H-Benzo(1,2-b:3,4-b':5,6-b'')tripyran-2,12-dione, 10,11-dihydro-6,6,10,11-tetramethyl-4-propyl-, (10R,11R)-;trans-(+)-2H,6H,12H-Benzo[1,2-b:3,4-b':5,6-b'']tripyran-2,12-dione, 10,11-dihydro-6,6,10,11-tetramethyl-4-propyl-, (10R,11R)-;(+/-)-Trans-ketone;AC1LA8DP;(1)-12-Oxocalanolide A;CHEMBL269090;CHEBI:102127;151005-67-3;161753-49-7;2H,6H,12H-Benzo[1,2-b:3,4-b':5,6-b'']tripyran-2,12-dione, 10,11-dihydro-6,6,10,11-tetramethyl-4-propyl-, (10R,11R)-rel-