久久成人在线观看|一级片aaa|黄色tv视频|久久综合操,色99久久,还枝格格**未删减版,至尊无赖电影未删减完整版免费观看中文

【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.