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2-Amino-4-methoxypyridine
乙腈中氮哌酮(阿扎哌隆)溶液
133种农残混标 BePure-31321MA-a
First Standard® 乙腈中吡唑特溶液,1000μg/mL
Furfural-2,4-dinitrophenylhydrazone
Carbophenothion-methyl oxygen-analogue,10ng/ul 标准品
哒嗪硫磷农药纯度标准物质
2-Ethylhexyl Salicylate
First Standard® 乙腈中炔苯酰草胺溶液,100μg/mL
普萘洛尔-D7盐酸盐