Athanor by arbastro
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The Library panel

Open the Library tab beside Layers. Search by name, CAS, code or SMILES, browse categories, star favorites, and drag a structure onto the canvas.

The Library panel with search, the four tabs, Favorites, Recent and Browse categories.The Library panel with search, the four tabs, Favorites, Recent and Browse categories.

Part Does
Search Finds a compound by name, CAS number, code or SMILES. See How to search the library
Filter Narrows what is listed
Molecules, Templates, Guides, Icons What the panel lists
Favorites Compounds you starred
Recent Compounds you used lately
Browse categories Inorganic, Amino acids, Carbohydrates, Nucleic acids, Lipids and more

Drag a structure onto the canvas to insert it.

Compound info and the LibraryThe Compound info panelSelect a structure and press I (or click the Compound info tab beside Properties). The panel says what the structure is, its other names, CAS number and PubChem record, its systematic name, its InChI and SMILES, and calculated properties.

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Last updated Nov 12, 2026