Glyphosate is an aminophosphonic analogue of the natural amino acid Glycine and the name is a contraction of Glycine, phospho-, and -ate. The molecule has several dissociable HYDROGENs, especially the first HYDROGEN of the phosphate group. The molecule tends to exist as a zwitterion where a phosphonic HYDROGEN dissociates and joins the amine group. Glyphosate is soluble in WATER to 12g/L at room temperature.
 

Although the Roundup trademark is registered with the US Patent Office and still extant, the patent has expired. Glyphosate is marketed in the US and worldwide in different solution strengths under many tradenames: Roundup, Buccaneer, Razor Pro (41%), Genesis Extra II (41% w/ Surfactant), Roundup? Pro Concentrate (50.2 %), Rodeo (51.2%), Aquaneat (53.8%), and Aquamaster (53.5%).These products may contain other ingredients, causing them to have different effects. For example, Roundup was found to have different effects to glyphosate alone. Roundup is a WATER based solution containing glyphosate, a surfactant, and other substances.