Wiktionary
threitol
n. (context chemistry English) A polyalcohol with the molecular formula C4H10O4, primarily used as an intermediate in the chemical synthesis of other compounds.
Wikipedia
Threitol
Threitol is a four-carbon sugar alcohol with the molecular formula CHO. It is primarily used as an intermediate in the chemical synthesis of other compounds. It is the diastereomer of Erythritol.