3,5-二硝基苯甲酸(DNBA),99.0% 上海怡淼化学科技有限公司

p1Src=//y3.yzimgs.com/uploads/531217/2019517-10231692.jpg?watermark/2/text/d3d3LnBlcmZlbWlrZXIuY29t/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast"