Annotation Level List

Ontology ID Name Description Parent Action
1 Identified compounds Identified compounds
2 Putatively annotated compounds Putatively annotated compounds (e.g. without chemical reference standards based upon physicochemical properties and/or spectral similarity with public/commercial spectral libraries)
3 Putatively characterized compound classes Putatively characterized compound classes (e.g. based upon characteristic physicochemical properties of a chemical class of compounds or by spectral similarity to known compounds of a chemical class)
4 Unknown compounds Unknown compounds-although unidentified or unclassified these metabolites can still be differentiated and quantified based upon spectral data