CRYSTALLINE FORM I OF 2-METHYL-4-(4-METHYL-1-PIPERAZINYL) 10H THIENO [2,3-B][1,5]BENZODIAZEPINE

摘要

A novel crystalline form of a known substance cannot be characterized in a sufficient clear and concise manner - distinguishing it form prior art compounds - by a vague property ("having a stable colour upon storage at ambient conditions") or by the giving of infrared absorbance bands alone. Only the characterisation by certain x-ray powder diffraction peaks seems to be sufficient (and a combination of such peaks with IR absorbance bands). For this reason, claims 1 and 3 (and claims 22-23 as far as they refer to claim 1 or 3) are not searchable. Further, the characterization of a novel product by its preparation process (see product-by-process claims 4-21) is not allowable, because such a characterization is only allowable in cases where no other possibility of characterizing a product is possible (which is not the case for the new compound of the present application).