New and useful polymorph of anhydrous paroxetine hydrochloride

Details New and useful polymorph of anhydrous paroxetine hydrochloride New and useful polymorph of anhydrous paroxetine hydrochloride

C - Chemistry, Metallurgy

07

D

C07D 405/12 (2006.01) A61K 31/445 (2006.01)

Patent

CA 2187128

A new form of paroxetine hydrochloride anhydrous, designated as Form III, is provided having one or more of the following characteristics: Infrared spectra as shown in Schedules "A" and "B"; a DSC onset temperature of about 159°C; an X-ray powder diffraction pattern as shown in Schedule "D"; a melting point of between about 156°C to about 162°C; a bulk density exceeding about 0.6g/mL and a tapped density exceeding about 0.9g/mL.

On présente une nouvelle forme de chlorhydrate de paroxétine anhydre, appelée Forme III et possédant une ou plusieurs des caractéristiques suivantes : spectre infrarouge selon les Annexes « A » et « B »; température DSC de départ d'environ 159 °C; diffraction des rayons X par la méthode des poudres, selon l'Annexe « D »; point de fusion d'environ 156 à 162 °C; densité apparente dépassant environ 0,6 g/mL; densité dépassant à peu près 0,9 g/mL.

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