There are two ways to finds substances using search fields: Main search field - Substance name, CAS Registry Number, patent identifie...

To find substances by chemical structure, first draw or upload a structure query. To begin, click the Draw button in the search field t...

You may add a chemical structure to search field terms and/or Advanced Search Fields. Note: If you enter both a search term query and a...

Note: For the Substances search type with a term in the field, the Molecular Formula Advanced Search Field with the AND operator is pre...