New crystal form for sodium valproate and preparation method and usage thereof

New crystal form for sodium valproate and preparation method and usage thereof

  • CN 102,079,699 A
  • Filed: 02/11/2011
  • Published: 06/01/2011
  • Est. Priority Date: 02/11/2010
  • Status: Active Application
First Claim
Patent Images

1. Sodium Valproate crystalline form III is characterized in that:

  • in the diffractogram of this crystalline powder X-ray line diffraction, located charateristic avsorption band angle of diffraction (2 θ

    )=5.40 °

    , 6.31 ±

    0.1 °

    , 7.28 °

    , 76.86 °

    , 18.10 °

    .

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