carboxylic acid 3-Oxoglutaric acid 146.022 146.098 3-oxopentanedioic acid C5H6O5 CAS:542-05-2 CHEBI:88950 HMDB:HMDB0013701 InChI=1S/C5H6O5/c6-3(1-4(7)8)2-5(9)10/h1-2H2,(H,7,8)(H,9,10) O=C(CC(O)=O)CC(O)=O OXTNCQMOKLOUAM-UHFFFAOYSA-N PMID:22372404 Wikipedia:3-oxoglutaric_acid b-Ketoglutaric Acid chebi_ontology