|CDX Constant Name:||kCDXProp_Atom_Charge|
|CDX Constant Value:||0x0421|
|Property of objects:||kCDXObj_Node|
|First written/read in:||ChemDraw 4.0 / 6.0|
The atomic charge of an atom.
Fractional values for charge are not supported.
In CDX files produced by ChemDraw 8.0, this property was mistakenly written as a 4-byte Fixed value. When reading CDX files, if the size of this property is found to be 4 bytes instead of the expected 1 byte, the actual value should be interpreted as actualCharge = (INT32)savedCharge >> 24. ChemDraw returned to writing INT8 values starting with version 8.0.6.
If this property is absent:
The atom is assumed to be uncharged.