has role is tautomer of amino-acid betaine ergothioneine plant metabolite ergothioneine thione form (2S)-3-(2-thioxo-2,3-dihydro-1H-imidazol-4-yl)-2-(trimethylazaniumyl)propanoate 229.088 229.29900 A L-histidine derivative that is N(alpha),N(alpha),N(alpha)-trimethyl-L-histidine in which the hydrogen at position 2 on the imdazole ring is replaced by a thioxo group. C9H15N3O2S CHEBI:82707 C[N+](C)(C)[C@@H](Cc1c[nH]c(=S)[nH]1)C([O-])=O HMDB:HMDB0003045 InChI=1S/C9H15N3O2S/c1-12(2,3)7(8(13)14)4-6-5-10-9(15)11-6/h5,7H,4H2,1-3H3,(H2-,10,11,13,14,15)/t7-/m0/s1 KEGG:C05570 MetaCyc:CPD-15276 PMID:23053092 PMID:23557367 PMID:23662614 PMID:24016264 PMID:24586778 PMID:24797165 PMID:24799212 PMID:24817736 PMID:24828577 PMID:24854868 PMID:25022513 PMID:25068406 PMID:25275953 Reaxys:6117289 SSISHJJTAXXQAX-ZETCQYMHSA-N Wikipedia:Ergothioneine chebi_ontology ergothioneine ergothioneine thione L-histidine derivative