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  • Enman, JosefineLuleå tekniska universitet,Industriell miljö- och processteknik (author)

Solid state characterization of sodium eritadenate

  • Article/chapterEnglish2011

Publisher, publication year, extent ...

  • Scientific Research Publishing, Inc.2011
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:ltu-14595
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-14595URI
  • https://doi.org/10.4236/ajac.2011.22019DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Validerad; 2011; 20110831 (joen)
  • Knowledge of the solid state is of great importance in the development of a new active pharmaceutical ingredient, since the solid form often dictates the properties and performance of the drug. In the present study, solid state characteristics of the sodium salt of the candidate cholesterol reducing compound eritadenine, 2(R), 3(R))-dihydroxy-4-(9-adenyl)-butanoic acid, were investigated. The compound was crystallized by slow cooling from water and various aqueous ethanol solutions, at different temperatures. Further, the compound solution was subjected to lyophilization and to high vacuum drying. The resulting solids were screened for polymorphism by micro Raman spectroscopy (λex = 830 nm) and the crystallinity was investigated by X-ray powder diffraction. Further, thermal analysis was applied to study possible occurrence of solvates or hydrates. Solids obtained from slow cooling showed crystallinity, whereas rapid cooling gave rise to more amorphous solids. Analysis of difference spectra of the Raman data for solids obtained from slow cooling of solution revealed subtle differences in the structures between crystals derived from pure water and crystals derived from aqueous ethanol solutions. Finally, from the thermal analysis it was deduced that crystals obtained from pure water were stoichiometrically dihydrates whereas crystals obtained from aqueous ethanol solutions were 2.5 hydrates; this formation of different hydrates were supported by the Raman difference analysis.

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  • Patra, AnuttamLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)anupat (author)
  • Ramser, KerstinLuleå tekniska universitet,Signaler och system(Swepub:ltu)ramser (author)
  • Rova, UlrikaLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)ulrok (author)
  • Berglund, KrisLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)krib (author)
  • Luleå tekniska universitetIndustriell miljö- och processteknik (creator_code:org_t)

Related titles

  • In:American Journal of Analytical Chemistry: Scientific Research Publishing, Inc.2:2, s. 164-1732156-82512156-8278

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By the author/editor
Enman, Josefine
Patra, Anuttam
Ramser, Kerstin
Rova, Ulrika
Berglund, Kris
About the subject
ENGINEERING AND TECHNOLOGY
ENGINEERING AND ...
and Industrial Biote ...
and Bioprocess Techn ...
ENGINEERING AND TECHNOLOGY
ENGINEERING AND ...
and Medical Engineer ...
and Other Medical En ...
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Luleå University of Technology

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