hexahydro-25-hydroxy-9-((1S)-1-hydroxyethyl)-16a,21-dimethyl-spiro(5,9,16,18-dimethano- 1H,3H,23H-(1,6,12)trioxacyclooctadecino(3,4-d)(1)benzopyran-17(18H)-2'-oxirane)- Satratoxin-H, a trichothecene mycotoxin, is a naturally occurring toxin produced by the ascomycetes Stachybotrys chartarum and Trichoderma cornu-damae which is highly toxic and potentially fatal to humans and other animals.

It is related to the mycotoxin T-2, but unlike T-2 has not been reported to have been used as a chemical weapon.

Satratoxin-H is almost completely insoluble in water, but is easily soluble in lower alcohols and polar solvents such as ethanol, methanol, 2-propanol, acetone and chloroform.

Satratoxin-H has little effect on bare skin, and does not blister it in the way many chemical weapons do.

However, upon contact with sensitive surfaces (eyes, interior of mouth or nose), inflammation will occur.