classification or metadata for metabolites

Question

[cmo]

Is there a comprehensive resource that has basic annotations for metabolites in any kind of usable format?

e.g. a list of which metabolites are short chain fatty acids (SCFAs), branched-chain amino acids, fibers, etc...

[Arsenal]

Do you mean like, Kegg Compound, PubChem, The Human Metabolome Database, Metabolomics Workbench, MetaCyc Compound, ChEBI?