Term Name:	hercynylcysteine sulfoxide
Synonyms:	(2S)-3-(2-{[(2R)-2-amino-2-carboxyethyl]sulfinyl}-1H-imidazol-4-yl)-2-(trimethylazaniumyl)propanoate
Definition:	A L-histidine derivative which is an intermediate in the synthesis of ergothioneine, a compound found in certain fungi and mycobacteria.
Ontology:	ChEBI [CHEBI:79057]  ( EBI )