Rustum AM - Search Results

1

Rapid structure elucidation of drug degradation products using mechanism-based stress studies in conjunction with LC-MS(n) and NMR spectroscopy: identification of a photodegradation product of betamethasone dipropionate.

Lin M, Li M, Buevich AV, Osterman R, Rustum AM. Lin M, et al. Among authors: rustum am. J Pharm Biomed Anal. 2009 Oct 15;50(3):275-80. doi: 10.1016/j.jpba.2009.04.004. Epub 2009 Apr 10. J Pharm Biomed Anal. 2009. PMID: 19525081

2

Separation of the S(+) and R(-)-enantiomers of tiagabine.HCl and its two chiral precursors by chiral chromatography: application to chiral inversion studies.

Rustum AM, Menon G, Patel S. Rustum AM, et al. J Pharm Biomed Anal. 1998 Sep;17(8):1439-47. doi: 10.1016/s0731-7085(98)00033-8. J Pharm Biomed Anal. 1998. PMID: 9800663

3

Efficient method development strategy for challenging separation of pharmaceutical molecules using advanced chromatographic technologies.

Xiao KP, Xiong Y, Liu FZ, Rustum AM. Xiao KP, et al. Among authors: rustum am. J Chromatogr A. 2007 Sep 7;1163(1-2):145-56. doi: 10.1016/j.chroma.2007.06.027. Epub 2007 Jun 22. J Chromatogr A. 2007. PMID: 17628579

4

Identification of an unknown extraneous contaminant in pharmaceutical product analysis.

Lin M, Li M, Rustum A. Lin M, et al. J Pharm Biomed Anal. 2007 Dec 21;45(5):747-55. doi: 10.1016/j.jpba.2007.08.021. Epub 2007 Aug 25. J Pharm Biomed Anal. 2007. PMID: 17928183

5

Quantitation of trace betamethasone or dexamethasone in dexamethasone or betamethasone active pharmaceutical ingredients by reversed-phase high-performance liquid chromatography.

Xiao KP, Xiong Y, Rustum AM. Xiao KP, et al. Among authors: rustum am. J Chromatogr Sci. 2008 Jan;46(1):15-22. doi: 10.1093/chromsci/46.1.15. J Chromatogr Sci. 2008. PMID: 18218183

6

Forced degradation of betamethasone sodium phosphate under solid state: Formation, characterization, and mechanistic study of all four 17,20-diastereomers of betamethasone 17-deoxy-20-hydroxy-21-oic acid.

Li M, Wang X, Chen B, Chan TM, Rustum A. Li M, et al. J Pharm Sci. 2009 Mar;98(3):894-904. doi: 10.1002/jps.21477. J Pharm Sci. 2009. PMID: 18623204

7

A comparative study of enol aldehyde formation from betamethasone, dexamethasone, beclomethasone and related compounds under acidic and alkaline conditions.

Chen B, Li M, Lin M, Tumambac G, Rustum A. Chen B, et al. Steroids. 2009 Jan;74(1):30-41. doi: 10.1016/j.steroids.2008.09.009. Epub 2008 Sep 30. Steroids. 2009. PMID: 18938190

8

Application of LC-MS(n) in conjunction with mechanism-based stress studies in the elucidation of drug impurity structure: rapid identification of a process impurity in betamethasone 17-valerate drug substance.

Li M, Lin M, Rustum A. Li M, et al. J Pharm Biomed Anal. 2008 Dec 15;48(5):1451-6. doi: 10.1016/j.jpba.2008.09.021. Epub 2008 Sep 19. J Pharm Biomed Anal. 2008. PMID: 18977106

9

Development and validation of a stability-indicating RP-HPLC method to separate low levels of dexamethasone and other related compounds from betamethasone.

Xiong Y, Xiao KP, Rustum AM. Xiong Y, et al. Among authors: rustum am. J Pharm Biomed Anal. 2009 Apr 5;49(3):646-54. doi: 10.1016/j.jpba.2008.12.023. Epub 2008 Dec 24. J Pharm Biomed Anal. 2009. PMID: 19171447

10

The use of differential scanning calorimetry for the purity verification of pharmaceutical reference standards.

Mathkar S, Kumar S, Bystol A, Olawoore K, Min D, Markovich R, Rustum A. Mathkar S, et al. J Pharm Biomed Anal. 2009 Apr 5;49(3):627-31. doi: 10.1016/j.jpba.2008.12.030. Epub 2008 Dec 30. J Pharm Biomed Anal. 2009. PMID: 19186017

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