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Polymorphic forms of 3-(4-amino-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione

DC
  • US 8,431,598 B2
  • Filed: 05/26/2011
  • Issued: 04/30/2013
  • Est. Priority Date: 09/04/2003
  • Status: Active Grant
First Claim
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1. A solid form of 3-(4-amino-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione comprising an unsolvated crystalline Form A of 3-(4-amino-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione having a differential scanning calorimetry thermogram endotherm at approximately 270°

  • C., wherein the crystalline form is present at greater than about 80% by weight of the total weight of 3-(4-amino-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione.

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