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Aminopterin
First Standard® 氯溴隆
3.5-Diiodo-4-hydroxybenzonitrile Solution 100ug/ml in Methanol
甲醇中乐果溶液标准物质
First Standard® 甲醇中萘乙酸溶液,100μg/mL
环己烷中环氟菌胺溶液标准样品
METHYL PARABEN (METHYL 4-HYDROXYBENZOATE) (RING-13C6, 99%)标准品
Hexadecyl-d33-trimethylammonium Bromide 标准品
NSI 非饮用水QC样-六价铬
丙烯基异硫氰酸酯 BePure-22134YA