- D - Pantothenic acid sodium crystal and its preparation and use (by machine translation)
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The invention belongs to the field of chemical medicine, in particular to D - Pantothenic acid sodium crystal and its preparation and use. The invention provides a D - Pantothenic acid sodium crystal, the crystal in the D - Pantothenic acid sodium 2 θ expressed on the X - ray powder diffraction spectrum, in 10.75 ± 0.20 °, 16 . 09 ± 0.20 °, 17 . 86 ± 0.20 °, 18 . 36 ± 0.20 °, 19 . 54 ± 0.20 °, 20 . 11 ± 0.20 °, 24 . 62 ± 0.20 °, 25 . 93 ± 0.20 °, 27 . 24 ± 0.20 °, 27 . 72 ± 0.20 °, 29 . 52 ± 0.20 °, 31 . 16 ± 0.20 ° and 39.65 ± 0.20 ° has a characteristic diffraction peak; in differential scanning thermal analysis on the Atlas, the D - Pantothenic acid sodium crystal in the 168 °C has caused by crystal melting endothermic peak; through the melting point determination, said D - Pantothenic acid sodium crystal melting point 166 - 170 °C. The invention also provides the above-mentioned D - Pantothenic acid sodium crystal preparation method and use. The invention provides D - Pantothenic acid sodium crystal in the air low hygroscopicity, high stability, so and can store and use more long time, prolonging the shelf life of the product. (by machine translation)
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Paragraph 0032; 0033
(2017/08/25)
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- Process for manufacturing sodium pantothenate
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A process for producing sodium pantothenate from β-aminopropionitrile is disclosed.
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