23-羟基白桦酸对照品 CS-6907 上海莼试生物技术有限公司

p1Src=//y2.yzimgs.com/uploads/535474/20191010-14504532.png?watermark/2/text/5LiK5rW36I686K-V55Sf54mp5oqA5pyv5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast