Ligroin is a volatile inflammable hydrocarbon mixture. This is distilled from petroleum and it is used as a solvent. This is a mixture of hydrocarbons so it is non-polar.
A ligroin extract of nutmeg (Myristica fragrans) caused a significant increase in the duration of light and deep sleep in the young chicken. The presence of trimyristin tended to increase the effect of the extract. The extract did not contain detectable amounts of myristicin, elemicin, safrole, or eugenol, which either individually or collectively have been suggested to be the active agent of nutmeg.
