The dried fruit of the rose (Ger. Hagebutte), when deprived of its seeds, yielded upon distillation 0,038 p. c. of an oil the odor of which strongly resembled of that of the haws1). d20o0,90733; aD19o(in 10 p.c. benzene solution) +0,40°; A. V. 22,1. The oil contains an aldehyde and when dissolved in alcohol separates a stearoptene.