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玉米赤霉酮
gamma-Cyhalothrin(有证书)
First Standard® 甲醇中8种喹诺酮的混标溶液,100μg/mL
Biphenyl-d10 标准品
2-Amino-6-chloro-[(4-methylphenyl)thio]-9-(2’,3’,5’-tri-O-acetyl-β-D-ribofuranosyl)purine
4-羟基苯甲醛-13C
氯唑磷 BePure-23581YB
2,3-Dihydroxyphenylacetic Acid
1,2-二甲基萘
a-Bromo-p-chloroacetophenone (无证书)