The fruits of Piper Lowong, BI. are also known as spurious cubebs. Upon distillation with water vapor K.Peinemann3) obtained 12,4 p.c. of an almost colorless oil, 0,865.

By means of distillation it was resolved into two main fractions, but some decomposition set in, whether it was distilled under ordinary pressure or in vacuum.

Fr. 1, consisting of 40 p.c. of the oil, boiled between 165 and 175°, was water-white; d20o 0,854; aD + 22°.

Fr. 2, consisting of 34 p.c. of the oil, boiled between 230 and 255°; d 0,9218; optically inactive; of a decidedly yellow color.

At 270° an oil of bluish-green color passed over.

From fraction 110 to 148° of a vacuum distillation (17 mm.) small amounts of crystals separated upon standing. Upon re-crystallization from chloroform they melted at 164°4). An elementary analysis yielded results that were in agreement with the rather improbable formula C10 H16 2H2O.

1) See footnote 1 on p. 298.

2) Perfum. and Essent. Oil Record 3 (1912), 64.

3) Arch, der Pharm. 234 (1896), 238.

4) Possibly this substance is identical with the stearoptene of the same melting point which has been found in juniper oil.