Abstract
The chemical investigation of Argentine bezoar showed the existence of cholesteryl esters of fatty acids (1), lithocholic acid, methyl cholate, methyl deoxycholate, methyl chenodeoxycholate, oleanolic acid, and ursolic acid besides the constituents already reported to be. The fatty acid compositions of 1, as well as of free fatty acids (2) were scrutinized using gas chromatography and mass chromatography by converting them into the corresponding mixtures of methyl esters (1e) and (2e). These analyses showed that the mixtures consisted of C14 to C18 fatty acid esters with varing degree of relative abundance, palmitate and stearate being the major components in each of the mixtures.