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ABSTRACT:
SUBMITTER: Stepanovs D
PROVIDER: S-EPMC3247589 | biostudies-literature | 2011 Nov
REPOSITORIES: biostudies-literature
Stepanovs Dmitrijs D Mishnev Anatoly A
Acta crystallographica. Section E, Structure reports online 20111005 Pt 11
The structure of the title compound, pentoxifylline, C(13)H(18)N(4)O(3), has been previously characterized as a triclinic polymorph [Pavelčík et al. (1989 ▶). Acta Cryst. C45, 836-837]. We have discovered the monoclinic form. There are no strong hydrogen bonds in the crystal structure, rather, moderate C-H⋯O hydrogen bonds are present, which serve to stabilize the three-dimensional architecture. ...[more]