Term Name:	NMR chemical shift reference compound
Synonyms:	NMR chemical shift reference compounds, NMR chemical shift standard, NMR chemical shift standards, NMR internal standard, NMR internal standards, NMR reference standard, NMR reference standards
Definition:	Any compound that produces a peak used as reference frequency in the δ chemical shift scale.
Ontology:	ChEBI [CHEBI:228364]  ( EBI )