1   Impact of solid state form on the disproportionation of miconazole mesylate salt                     !    !  "!  # 1 Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana, 47907, United States. 2 Pfizer Inc, Worldwide Research and Development, Cambridge, Massachusetts, United States. 3 Pfizer Inc, Worldwide Research and Development, Groton, Connecticut, United States.      Single crystal X.ray measurements were conducted on a Rigaku Rapid II curved image plate diffractometer with a Cu.Kα X.ray microsource (λ = 1.54178 Å) with a laterally graded multilayer (Goebel) mirror for monochromatization. Single crystals were mounted on Mitegen microloop mounts using a trace of mineral oil and cooled in.situ to 100(2) K for data collection. Data were collected using the dtrek option of CrystalClear.SM Expert 2.1 b32 [1]. Data were processed using HKL3000 [2] and data were corrected for absorption and scaled using Scalepack [2]. The space group was assigned and the structures were solved by direct methods using XPREP within the SHELXTL suite of programs [3] and refined by full matrix least squares against  2 with all reflections using Shelxl2014 [4] with the graphical interface Shelxle [5]. The