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(进口药品通关单)螺旋霉素 标准品
2,6-Di-tert-butyl-4-methoxyphenol
Silicon dioxide, isotopic, solid 标准品
4-Amino-3-chloropyridine
AROCLOR STANDARD MIX 1, 5X1ML, ACETONE:MEOH(40:60),VARIED CONCENTRATION 标准品
吡嘧磺隆纯度标准物质
7种半挥发物混标
First Standard® 速灭威
Nitric Oxide in Nitrogen (Nominal 1500 μmol/mol)
cis-1,2,3,6-Tetrahydrophthalimide (ring-d6)