|CDX Constant Name:||kCDXProp_Atom_IsotopicAbundance|
|CDX Constant Value:||0x043F|
|Property of objects:||kCDXObj_Node|
|First written/read in:||ChemDraw 8.0|
Isotopic abundance of this atom's isotope.
This is an enumerated property. Acceptible values are shown in the following list:
|0||Unspecified||Nothing is specified about the node's isotopic abundance|
|1||Any||Node may match any node of the same element type, regardless of isotopy|
|2||Natural||Node's element exists explicitly in natural abundance. Not valid when the node also has a specific isotopy|
|3||Enriched||Node is enriched in the specified isotope. Not valid unless the node also has a specific isotopy|
|4||Deficient||Node is deficient in the specified isotope. Not valid unless the node also has a specific isotopy|
|5||Nonnatural||Node has a non-natural abundance of the specified isotope (may be either enriched or deficient). Not valid when the node also has a specific isotopy|
If this property is absent:
The node is treated as having Unspecified isotopic abundance..