Ⅰ、Name:2-Methoxyethoxymethyl chloride
　　1-Chloromethoxy-2-methoxy-ethane
　　the side chain of roxithromycin
　　CAS NO.：3970-21-6
Ⅱ、Structural formula: CH3OCH2CH2OCH2CI
Ⅲ、Purity：95.0％ min (By GC)
Ⅳ、Outward appearance: colorless and clear liquid
Ⅴ、Application：the medium to produce roxithromin
Ⅵ、Packing：plastic drum，25kg each or 100kg each