www.日韩在线观看,五月月色开心婷婷久久合,久色,有码在线视频,亚洲欧美一区二区三区综合,亚洲欧美精品综合中文字幕,久久亚洲国产的中文

【Molecular formula】:  C₁₄H₁₁NO₅
【CAS NO.】:  134308-13-7

【Molecular weight】：273.241
【Introduction】：Important medical intermediate.
 

【Quality parameters】：

【Storage】：Use as soon as possible at low temperature, avoiding moisture or impurity.
【Packing】：25kg in paperboard drum or according to the users.