Trichothecenes, Type A

**Definition:** A subclass of Trichothecene derivatives that include the 12,13-epoxytrichothec-9-ene structure of the molecule with the C-8 position containing either no oxygen substitution, a hydroxyl group at C-8, or an ester function at C-8.

**Tree numbers:** - D02.455.849.765.850.950 - D04.345.891.950 - D23.946.587.933.950

**Synonyms:** - Type A Trichothecenes