Cyclitol

Cyclitols are cycloalkanes containing one hydroxyl group on three or more ring atoms. They are cyclic polyols. Cyclitols are one of the compatible solutes which are formed in a plant as a response to salt or water stress. Some cyclitol (e.g. quinic or shikimic acid) are parts of hydrolysable tannins.

Naturally occurring cyclitols

 * Bornesitol
 * Conduritol
 * Inositol
 * Ononitol (4-O-methyl-myo-inositol)
 * Pinitol (3-O-methyl-chiro-inositol)
 * Pinpollitol (di-O-methyl -(+)-chiro-inositol)
 * Quebrachitol (2-0-methyl-chiro-inositol)
 * Quinic acid
 * Shikimic acid
 * Valienol
 * Viscumitol (dimethyl-ether-muco-inositol)

Glycosides

 * Ciceritol, a pinitol digalactoside

Phosphates

 * Phytic acid