Following compounds were obtained in crystals: 2,3,5,6-Diacetone-l-mannofuranose, m.p., 122–122.5° and [α]D=−27° (in acetone). Bis-phenylhydrazone of l-lyxo-trihydroxy-glutaric dialdehyde, m.p., 165–165.5° and [α]D=+73° (in pyridine). Bis-p-nitro-phenyl-hydrazone of l-lyxotrihydroxy-glutaric dialdehyde, m.p., 203.5–204°. Potassium diacetone-l-mannonate, [α]D10=+32.2° (in water). And diacetone-l-mannopolactone, m.p. 124–124.5°.
以下化合物为晶体:2,3,5,6-二
丙酮-l-
甘露糖,熔点 122-122.5°,[α]D=-27°(在
丙酮中)。l-lyxo-trihydroxy-glutaric dialdehyde 的双苯基腙,熔点 165-165.5°,[α]D=+73°(在
吡啶中)。l-lyxotrihydroxy-glutaric dialdehyde 的双对
硝基苯腙,熔点 203.5-204°。二
丙酮-l-甘露酸
钾,[α]D10=+32.2°(
水中)。二
丙酮-l-甘露内酯,熔点 124-124.5°。