英文别名Camphor Impurity 1; Camphor Sulfonic Acid Methyl Ester; (1S,4R)-methyl (7,7-dimethyl-2-oxobicyclo[2.2.1]hept-1-yl)methanesulfonate; Methyl (1S)-(+)-10-Camphorsulfonate; Bicyclo[2.2.1]heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, methyl ester, (1S,4R)-