外观

Appearance

白色或类白色结晶性粉末

White or almost white crystalline powder，Odorless

鉴别

Identification

  应与红外对照图谱一致

   Confirm with IR standard

有关物质

Related substances

1-羟基-三苯甲酰基核糖

1-hydroxyl-2,3,5,-tri-O-benzoyl--D-ribofuranose

1-甲氧基-三苯甲酰基核糖

1-O-methyl-2,3,5-tri-O-benzoyl-D-ribofuranose

未知杂质

Unknown impurity

≤2.0%

≤0.5%

≤0.5%

≤1.0%

熔点

Melting Point

       126.0～133.0℃

干燥失重

Loss on drying

≤0.5%

炽灼残渣

Residue  on ignition

≤0.5%

比旋度

Optical rotation

+39～44°(C=0.5, Chloroform)

含量

Assay

≥98.0%