Objective To isolate and elucidate the chemical constituents of the Ovum Oil of Rana temporaria chensinensis David.Methods The compounds were isolated by using the column chromatography on silica gel and LH 20. The structures were identified by IR, 1H NMR , 13 C NMR and MS spectra respectively.Results Six compounds were elucidated as hexadecanoic acid,2,3 dihydroxypropyl ester(Ⅰ), hexadecanoic acid,2 hydroxy 1,3 propanediyl ester(Ⅱ),9 octadecenoic acid,2,3 dihydroxypropyl e...