1-丁基-1-甲基溴化哌啶鎓,>97.0%(T) 图片

p1Src=//y1.yzimgs.com/uploads/531217/2019617-171634979.jpg?watermark/2/text/d3d3LnBlcmZlbWlrZXIuY29t/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"