Adding Chemical Names

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In ChemDraw Ultra only, you can insert the name of a selected structure as a caption using the Convert Structure to Name command from the Structure menu.

The Struct=Name algorithm used in ChemDraw 8.0 is a new proprietary naming algorithm developed by CambridgeSoft. It replaces Beilstein's AutoNom algorithm used in earlier versions of ChemDraw.

The conversion of a structure to a name is limited by many factors. Specifically, Struct=Name makes little or no attempt to name the following:

• Charged structures (although some common salt forms will be named correctly).
• Radicals.
• Mixtures and other multicomponent systems.
• Compounds with non-standard valence states.
• Spiro ring systems.
• Isotopically modified compounds.
• Inorganics (although some simple structures will be named correctly).
• Polymers.
• Biochemicals- including specialized nomenclature for amino acids, carbohydrates, and steroids. For such compounds, only the fully systematic organic name is produced.

Another limitation is that the set of heavy atoms for an organic component is confined to: Hg, B, C, N, O, F, Si, P, S, Cl, Ge, As, Se, Br, Sn, Sb, Te, I, Pb, Bi, and At.

Struct=Name generates names with proper CIP stereochemistry descriptors. It has no theoretical limits to the size of the structures that can be named.

To insert the name of a structure into your drawing:

1. Select the drawing for which you want to insert a name.

2. From the Structure menu, choose Convert Structure to Name.

The name of the structure appears as a caption under your drawing.