Atom_Isotope Property

CDXML Name:Isotope
CDX Constant Name:kCDXProp_Atom_Isotope
CDX Constant Value:0x0420
Data Size:INT16
Property of objects:kCDXObj_Node
First written/read in:ChemDraw 4.0 / 6.0


The absolute isotopic mass of an atom (2 for deuterium, 14 for carbon-14).

A value of zero indicates natural abundance.

This property is meaningful only for nodes with a kCDXProp_Node_Type of type Element.

If this property is absent:

The atom is assumed to be of natural abundance.


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