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First Standard® 甲苯中4种BHC异构体混标溶液,1000μg/mL
PEG 1540 monolaurate
2,3-Dimethylphenanthrene
p-Hydroxy mercuribenzoate sodium salt (无证书)
Surrogate Standard EPA Method 532 500ug/ml in Methanol:Acetonitrile (50:50)
TERBUTYLAZINE-2-HYDROXY PESTANAL, 250 MG 标准品
肌苷
AM2232
头孢他美酯溶液,100ppm
萘烷(十氢化萘) 顺反异构混合物 标准品