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X-ray powder diffraction analysis of ±-fenoprofen calcium dihydrate

  • Ailette Aguila Tobien (a1) and Peter Varlashkin (a1)

Abstract

The current JCPDS powder pattern for the racemic compound fenoprofen calcium dihydrate (card No. 44-1790) is unindexed. Previously we reported the single crystal data, determined at −100 °C, for this material (Zhu et al., 2001). Using 2θ values obtained from a powder pattern spiked with internal standards, we indexed the room temperature powder pattern. The resulting unit cell values for the monoclinic P21/n cell are a=19.018 Å, b=7.738 Å, c=19.472 Å, β=91.66°.

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a)Author to whom correspondence should be addressed; electronic mail: Peter.G.Varlashkin@gsk.com

References

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Bernstein, J. and Zevin, L. (1993). JCPDS card 44-1790.
Florey, K., editor (1977). Analytical Profiles of Substances and Excipients (Academic, New York), Vol. 6, pp. 161182.
Sathe, R.and Moore, S. (1995). “Dehydration and hydration kinetics, phase change, solubility and dissolution behavior of fenoprofen calcium,” Drug Dev. Ind. Pharm. DDIPD8 21, 18871894. ddi, DDIPD8
Zhu, H., Xu, J., Varlashkin, P., Long, S., and Kidd, C. (2001). “Dehydration, hydration behavior, and structural analysis of fenoprofen calcium,” J. Pharm. Sci. JPMSAE 90, 845859. jmk, JPMSAE

Keywords

X-ray powder diffraction analysis of ±-fenoprofen calcium dihydrate

  • Ailette Aguila Tobien (a1) and Peter Varlashkin (a1)

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