Searching in CAS SciFinder

When you log in to CAS SciFinder, search options are presented at the top of the Home page. (You can click the CAS SciFinder logo to re...

Conduct an All search to find substances, reactions, references, and suppliers that match your query. You can enter a text query (e.g.,...

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...

Use a Patent Markush search to find structures (including generic structures) matching your query within patent references. For example...

You may find reactions using specified reaction roles and groups, multiple search terms (including Boolean operators), and reaction-spe...

To draw a structure query, click the Draw button in the search field to open the structure editor. Select the preferred structure edit...

Note: You may use the search field and Advanced Search Fields separately or in combination. For example, I'll enter the substance ibupr...

To find references using a chemical structure, first draw or upload a structure query. Click the Draw button in the search field to ope...

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...

Multi-term reference search queries are matched against indexed concepts and substances, using the terms' order and proximity to return...

Enter the substance name or CAS Registry Number to identify the substance. The query must match the substance identifier exactly. CAS S...

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

Searching the CAS Lexicon helps you find the CA indexing terms for concepts, chemical classes, and taxonomic vocabulary. By viewing and...

Find sequences that match your query, which can be a protein/nucleotide string or a .txt/.fasta file. Enter or copy and paste a protei...

Find sequences that match your query, which can be a protein string or a .txt/.fasta file. Enter, copy and paste, or upload a file fo...

Find sequences that match your query, which can be a protein/nucleotide string. Enter or copy and paste a protein/nucleotide string. S...

Draw a Structure In CAS SciFinder, you may use the CAS Draw and ChemDoodle structure editors to draw structure images for use as querie...

Completed searches are automatically recorded on the Your Search History page, accessed by clicking the Menu icon at the top of any pag...

On the Search History page, click the Download icon . In the Download Your Search History window: File Name: You may edit the auto-g...

You may delete all of your past searches or those within a specified range. To begin, click the trash can icon. Select one of the foll...

To display your search history for a specific date range, populate the Start Date and End Date fields in one of two ways: Enter the da...

Click Edit Search on a Search History item to reload the query, enabling you to add/edit/delete search terms. You may edit and rerun al...