public static IMolecularFormula getMajorIsotopeMolecularFormula ( String stringMF , IChemObjectBuilder builder ) { return getMolecularFormula ( stringMF , true , builder ) ; }
Construct an instance of IMolecularFormula initialized with a molecular formula string . The string is immediately analyzed and a set of Nodes is built based on this analysis . The hydrogens must be implicit . Major isotopes are being used .