Refers to a form of Crystalline hemihydrate (1 - B - D -- glucopyranosyl) - 4 - methyl - 3 - [5 - (4-fluorophenyl) - (2-thienylmethyl) benzene is an x-ray diffraction Pattern, which comprises the following 2theta values measured using Radiation Cuka: 3.84, 10.64, 10.90, 13.02, 13.58, 13.92, 14.24, 15.16, 3.46, 15.60, 0.77, 16.22, 5.30, 18.26, 18.80, 1910, 1938, 20.28, 21.08, 2140, 21.80, 22.50, 22.76, 23.18, 2340, 23.82, 24.08, sorted, 25.10, 25.64, 26.28, 26.80, 27.30, 28.28, 29.82, 30.32, 31.16, 32.32, 32.16, 32.84, 32.82, 33.04, 33.30, 34.70, 4.56, 49.25 and 52.85 + 0.2. It also relates to a Pharmaceutical Composition and a preparation method. The Crystalline form is an inhibitor of the sodium dependent Glucose Transporter is useful in the treatment of DiabetesSE REFIERE A UNA FORMA CRISTALINA DEL HEMIHIDRATO DE 1-(B-D-GLUCOPIRANOSIL)-4-METIL-3-[5-(4-FLUOROFENIL)-2-TIENILMETIL]BENCENO QUE TIENE UN PATRON DE DIFRACCION DE RAYOS X QUE COMPRENDE LOS SIGUIENTES VALORES 2THETA MEDIDOS UTILIZANDO RADIACION CuKa: 3.84, 10.64, 10.90, 13.02, 13.58, 13.92, 14.24, 15.16, 15.46, 15.60, 15.94, 16.22, 17.30, 18.26, 18.80, 19.10, 19.38, 20.28, 21.08, 21.40, 21.80, 22.50, 22.76, 23.18, 23.40, 23.82, 24.08, 24.48, 25.10, 25.64, 26.28, 26.80, 27.30, 28.56, 29.82, 30.32, 31.16, 31.64, 32.16, 32.58, 32.82, 33.04, 33.30, 34.70, 35.58, 36.42 Y 39.68 ± 0.2. TAMBIEN SE REFIERE A UNA COMPOSICION FARMACEUTICA Y A UN PROCEDIMIENTO DE PREPARACION. DICHA FORMA CRISTALINA ES UN INHIBIDOR DEL TRANSPORTADOR DE GLUCOSA SODIO-DEPENDIENTE SIENDO UTIL EN EL TRATAMIENTO DE DIABETES