Keywords chemical entity
bao BioAssay Ontology
bpdb Bio-Pesticides DataBase
cas Chemical Abstracts Service Registry Number
chebi Chemical Entities of Biological Interest
chembl ChEMBL
chmo Chemical Methods Ontology
enm eNanoMapper ontology
erm European Registry of Materials
hmdb Human Metabolome Database
inchi InChI
ligandexpo Ligand Expo
molmedb MolMeDB
nddf National Drug Data File
ndfrt National Drug File - Reference Terminology
ppdb Pesticide Properties DataBase
rhea Rhea reaction
smpdb Small Molecule Pathway Database
sopharm Suggested Ontology for Pharmacogenomics
spin SPIN Modeling Vocabulary
stitch Search Tool for Interactions of Chemicals
vsdb Veterinary Substances DataBase