Sildenafil citrate (Viagra)
โ Scribed by A.M. MacConnachie
- Book ID
- 114324448
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 216 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0964-3397
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๐ SIMILAR VOLUMES
Sildenafil citrate (Viagra) [I] and sildenafil base [II] are easily and unequivocally characterized by a set of physicochemical methods that include X-ray diffractometry, infrared spectroscopy, and thermal analysis. Monoclinic lattice constants: [I]: a ยผ 26.98 A ห; b ยผ 11.95 A ห; c ยผ 16.68 A ห; b ยผ
The interaction of Ca(2+)-ions with sildenafil citrate (Viagra) leads to the precipitation of a new polymorph variety of sildenafil base. Under the same conditions, Mg(2+), Zn(2+), and Cd(2+) ions form structurally related crystalline complexes of the composition Me(2+)C(28)H(34)N(6)O(11)S. Lattice