如果企业客服不在线,也可拨打400电话联系。或者发布求购信息
First Standard® 甲苯中4种BHC异构体混标溶液,1000μg/mL
4’-Apo-β-胡萝卜醛 标准品
伸筋草
杀虫脲
乳粉中脂肪成分分析标准物质 农科院质标所
Dicamba
Methacrylic acid sodium salt (无证书)
(1R,2S,3R,5S)-5-Acetyloxy-2-hydroxymethyl-3-tetrahydropyranyloxy-α-(phenylseleno)cyclopentaneheptan
Phenyl sulfide
a.a.a-Trifluorotoluene Solution