Atom_Formula Property

CDXML Name:Formula
CDX Constant Name:kCDXProp_Atom_Formula
CDX Constant Value:0x0404
Data Size:CDXFormula
Property of objects:kCDXObj_Node
First written/read in:(not written/read)
Required?No

Description:

The composition of a node representing a fragment whose composition is known, but whose connectivity is not. For example, C4H9 represents a mixture of the 4 butyl isomers.

It consists of a series of pairs of UINT16s. Each pair represents an element and a count, for example, 6, 4, 1, 9 for C4H9.

If this property is absent:

This property is not read (or written) by ChemDraw, but is defined for future compatibility. There is no consequence to omitting it.

 


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