Term Name:	semiviriditoxin
Synonyms:	methyl [(3S)-9,10-dihydroxy-7-methoxy-1-oxo-3,4-dihydro-1H-naphtho[2,3-c]pyran-3-yl]acetate, semiviriditoxin
Definition:	A naphthopyran that is 3,4-dihydro-naphtho[2,3-c]pyran-1-one which is substituted by a 2-methoxy-2-oxoethyl group at position 3, a methoxy group at position 7, and hydroxy groups at positions 9 and 10 (the 3S enantiomer). It is produced by the fungus Paecilomyces variotii, isolated from the larvae of the mountain pine beetle Dendroctonus ponderosae. The biological precursor of viriditoxin.
Ontology:	ChEBI [CHEBI:146008]  ( EBI )