- BROMIDE AND ITS CRYSTAL
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The 1-(2-methoxyethyl)-2-methyl-4,9-dioxo-3-(pyrazin-2-ylmethyl)-4,9-dihydro-1H-naphtho[2,3-d]imidazol-3-ium bromide of the invention and its crystals, particularly α- and β-form Crystals, have no hygroscopic property, have excellent stability and therefore are useful as production materials of medicines. Particularly, the β-form Crystal is most stable and markedly useful as a bulk for medicines.
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Page/Page column 5-6
(2008/06/13)
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