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    • 6. 发明授权
    • Crystalline form of D-gulose
    • D-酮糖的结晶形式
    • US5215591A
    • 1993-06-01
    • US856638
    • 1992-03-24
    • James R. BeadleGilbert V. LevinLee R. Zehner
    • James R. BeadleGilbert V. LevinLee R. Zehner
    • C07H3/02C13K13/00
    • C07H3/02C13K13/00
    • Free flowing, substantially pure, non-hygroscopic, crystalline .beta.-D-gulopyranose is disclosed. This crystalline form of D-gulose is characterized by a sharp melting point of 130.degree.-132.degree. C., a specific optical rotation of -40.degree. and characteristic mutarotation. A method for preparation of crystalline .beta.-D-gulopyranose from D-gulose syrup is also disclosed. This method involves dilution of the D-gulose syrup, followed by initiation of crystallization, and isolation of .beta.-D-gulopyranose crystals. Crystalline .beta.-D-gulopyranose may be used as an excipient, a chelating agent, a pharmaceutical intermediate, a cleaning agent for glass and metals, a food additive, and as an additive for detergents.
    • 公开了自由流动的,基本上纯的,非吸湿性的结晶β-D-吡喃葡萄糖。 该D-形木糖的结晶形式的特征在于尖锐的熔点为130℃-132℃,比旋光度为-40度,具有特殊的旋转作用。 还公开了从D-木糖糖浆制备结晶β-D-吡喃葡萄糖的方法。 该方法包括稀释D-木糖糖浆,随后开始结晶,并分离β-D-吡喃葡萄糖晶体。 结晶β-D-吡喃葡萄糖可用作赋形剂,螯合剂,药物中间体,玻璃和金属用清洁剂,食品添加剂和用作洗涤剂的添加剂。