(2R)-glufosinate (2R)-glufosinate zwitterion An amino acid zwitterion resulting from the transfer of a proton from the carboxy group to the amino group of (2<i>R</i>)-glufosinate. (2R)-2-azaniumyl-4-(hydroxymethylphosphinyl)butanoate (R)-glufosinate zwitterion 4-[hydroxy(methyl)phosphinoyl]-D-homoalanine zwitterion (2R)-2-azaniumyl-4-[hydroxy(methyl)phosphoryl]butyrate (2R)-2-azaniumyl-4-[hydroxy(methyl)phosphoryl]butyrate (-)-glufosinate zwitterion (2R)-2-azaniumyl-4-[hydroxy(methyl)phosphoryl]butanoate (2R)-2-azaniumyl-4-[hydroxy(methyl)phosphoryl]butanoate glufosinate-P zwitterion (2R)-glufosinate zwitterion(1-) amino-acid zwitterion