Item _chemical_formula.sum

Description

              See the CHEMICAL_FORMULA category description for the rules
               for writing chemical formulae in which all discrete bonded
               residues and ions are summed over the constituent elements,
               following the ordering given in general rule 5 in the
               CHEMICAL_FORMULA category description. Parentheses are not
               normally used.

Category

Item Examples

Example 1:

C18 H19 N7 O8 S

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Data Type Code

Alias Names