项目

标准

外观

白色结晶粉末

鉴别

Should conform

PH值

Between 4.0 and 6.0

澄清度与色度

Not more intense than 1# turbidity RS and not more intensely colored than RSYG5

氟

Between 6.5 and 8.0%

有关物质

Not more than1.0%

重金属

Not more than 10ppm

干燥失重

Not more than 0.5%

炽灼残渣

Not more than 0.5%

二氯甲烷

Not more than 0.06 %

乙醇

Not more than 0.5%

含量

Doxifluridine contains not less than 98.5% of(C9H11FN2O5),calculated with the dried basis