C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
C07F9/02—Phosphorus compounds
C07F9/28—Phosphorus compounds with one or more P—C bonds
C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
C07F9/3813—N-Phosphonomethylglycine; Salts or complexes thereof