Fluoroquinolone carboxylic acid molecular crystals
A molecular crystal form of (R)-(+)-7-(3-amino-2,3,4,5,6,7-hexahydro-1H-azepin-1-yl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid is characterized by at least one of: (a) an X-ray powder diffraction ("XRPD") spectrum that comprises peaks at 2 angles of 10.6, 15, 19.7, 21.1, and 22 DEG ± 0....
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Sprache: | chi ; eng |
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Zusammenfassung: | A molecular crystal form of (R)-(+)-7-(3-amino-2,3,4,5,6,7-hexahydro-1H-azepin-1-yl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid is characterized by at least one of: (a) an X-ray powder diffraction ("XRPD") spectrum that comprises peaks at 2 angles of 10.6, 15, 19.7, 21.1, and 22 DEG ± 0.2 DEG; (b) a DSC melting peak at 288 DEG C; (c) a 13C NMR spectrum having peaks at 23.3, 27.7, 41.1, 54.5, 116.6, and 153.5 ppm; and (d) pKa values of 5.65 and 9.91. |
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