β-蜕皮甾酮（蜕皮甾酮），化学对照品(约20mg) 上海康朗生物科技有限公司

p1Src=//y1.yzimgs.com/uploads/495139/20161125-936343.png?watermark/2/text/5LiK5rW35bq35pyX55Sf54mp56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast