β-Santalol is an organic compound that is classified as a sesquiterpene.

It comprises about 20% of the oil of sandalwood, the major component being α-santalol.

In 2002, about 60 tons of sandalwood oil were produced by steam distillation of the heartwood of Santalum album.

[1] Because of concerns about the sustainability of sandalwood tree cultivation, scientists have developed routes to α-santalol and β-santalol via fermentation, including using Rhodobacter sphaeroides.

BASF launched its version, Isiobionic Santalol, in July 2020.