杂质:≤0.5%熔点:55~61℃ 旋光:-4.2±0.5°(c=2,乙酸) 水分:≤0.5% 折射率 -4.3 ° (C=2, AcOH)
Items
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Standard
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Appearance
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White fine crystal
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Water Content
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Not more than 0.50%
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Solubility
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No insoluble
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Clarity and color of solution
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Clear and colorless
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Specific Rotation(20/D)
(c = 2 in acetic acid)
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-4.2±0.5°
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Melting Point (℃)
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58to61℃
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TLC Analysis
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One spot only
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Limit of Isomer
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Not more than 0.50%
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Purity (PHLC)
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Not less than 99%
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