Athanor by arbastro
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How to get the IUPAC name of a structure

Select the structure and press Ctrl+Alt+N (Structure to name). Athanor copies its IUPAC name and shows it in a message with Insert as text, which places the name under the structure.

On a Mac, Ctrl is Cmd.

Steps

  1. Select the structure with Select (V).

  2. Press Ctrl+Alt+N, or choose Object › Chemistry › Structure to name.

  3. A message shows the name and says it is copied. For ibuprofen it is 2-[4-(2-methylpropyl)phenyl]propanoic acid.

    The message Copied: 2-[4-(2-methylpropyl)phenyl]propanoic acid, with Insert as text.The message Copied: 2-[4-(2-methylpropyl)phenyl]propanoic acid, with Insert as text.

  4. Press Insert as text to put the name under the structure, or paste it anywhere with Ctrl+V: a caption, a paper, a search box.

    Ibuprofen with its IUPAC name inserted under it as text.Ibuprofen with its IUPAC name inserted under it as text.

If the structure cannot be named, for example because it is not finished or has a problem the issues badge points out, Athanor says why instead.

Name every structure at once

Object › Chemistry › Name every structure names every selected structure at once. See How to name every structure and rename them.

Names, properties and checksHow to copy a structure as SMILES, InChI or a molfileSelect the structure and use Edit › Copy as: Copy as SMILES (Ctrl+Alt+C), InChI, InChIKey, molfile, CDXML, chemfig or mhchem formula. Then paste it wherever you need it.Selection and arrangingThe Layers panelLayers (Shift+L) lists every structure and object on the page, structures first, each with its formula and molecular weight. Click a row to select it, double-click a structure to name it, and use the eye to hide it.

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Last updated Nov 12, 2026