| 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 |
| Required? | No |
Description:
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.