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PUNYW26592543 (S)-Naringenin
3,4,5-Trimethoxycocaine HCl, 2 标准品
1,1-Dichloro-2,2-bis(4-Chlorophenyl-d4)ethane
o.p-DDT Solution 100ug/ml in Methanol
9,10-Dinitroanthracene 标准品
2.2'.4.4'.6.6'-Hexabromobiphenyl (无证书)
2-甲基苯甲醛
First Standard® 甲醇中环草定溶液,100μg/mL
Phenanthrene-9-carboxaldehyde (无证书)
1,2,3-三氯丙烷(有证书)