1/1 summary thiametoxam and uses thereof crystalline form of 3- (2-chloro-1,3-thiazol-5-ylmethyl) -5-methyl1,3,5-oxadiazinan -4-yledene (nitro) amine (thiamethoxam ) is provided. the crystalline form exhibits an x-ray powder diffraction pattern having characteristic peaks (expressed in degrees 2. +/- 0.2 °.) at one or more of the following positions: 6.09, 15.37, 17.83, 18.43, 20.86, 22.01, 26.95 and 27.84, and an infrared (ir) spectrum having characteristic peaks at about 2933.62, 2161.78 and 1593.88 cm-1. a method of preparing the crystalline form comprises crystallizing 3- (2-chloro-1,3-thiazol-5-ylmethyl) -5-methyl-1,3,5-oxadiazi nan -4-yledene (nitro) amine (thiamethoxam) from a solvent system including a solvent selected from an alcohol, glycol, ether, ketone, ester, amide, nitrile, aliphatic or aromatic hydrocarbon, or mixtures thereof； and isolating the resulting crystals.1/1 resumo tiametoxam e usos do mesmo a crystalline form of 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl1,3,5- oxadiazinan -4-yledene (nitro)amine (thiamethoxam) is provided. the crystalline form exhibits an x-ray powder diffraction pattern having characteristic peaks (expressed in degrees 2. +/- 0.2° .) at one or more of the following positions: 6.09, 15.37, 17.83, 18.43, 20.86, 22.01, 26.95 and 27.84, and an infrared (ir) spectrum having characteristic peaks at about 2933.62, 2161.78 and 1593.88 cm-1 . a method of preparing the crystalline form comprises crystallizing 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazi nan -4-yledene (nitro)amine (thiamethoxam) from a solvent system comprising a solvent selected from an alcohol, a glycol, an ether, a ketone, an ester, an amide, a nitrile, an aliphatic or aromatic hydrocarbon, or mixtures thereof； and isolating the resulting crystals.
