From the epigeal pan of Oxytropis muricata growing on Mongolian territory we have isolated the new alkaloid muricatide, the known alkaloids N-benzoyl-2-hydroxyphenethylamine and N-nicotinoyl-2-hydroxyphenethylamine, and the flavonoids robinin and kaempferol. On the basis of spectral characteristics, the structure of muricatide has been established as N-benzoyl-2-acetoxyphenethylamine, and this has been confirmed by partial synthesis. Muricatide was known previously as a synthetic compound but this is the first time that it has been found in Nature.