英文别名Orlistat Dihydropyranone Impurity; Orlistat Related Compound [(S)-3-Hexyl-5,6-dihydro-6-undecyl-2H-pyran-2-one]; Orlistat Impurity 8; (2S)-5-hexyl-2-undecyl-2,3-dihydropyran-6-one; Orlistat Impurity 21; 2H-Pyran-2-one, 3-hexyl-5,6-dihydro-6-undecyl-, (S)- (9CI); (S)-3-hexyl-6-undecyl-5,6-dihydro-2H-pyran-2-one 
