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
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4-Chloromethyl-2,2-dimethyl-1,3-dioxolane
杀虫单Monosultap 标准品
2.4-Dimethyl-2-pentene
5(S)-[1(S)-Azido-3(S)-[4-methoxy-3-(3-methoxypropoxy)benzyl]-4-methylpentyl]-3(S)-isopropyldihydrofu
O,P'-滴滴伊
苯甲酸 标准品
EPA Method 529 Internal Standard Stock Solution 标准品
Desacetylnorgestimate 标准品
GOLDENSEAL XRM 标准品
First Standard® 甲苯中4, 4’-滴滴伊溶液, 1000μg/mL