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(3β,20S)-3-O-Acetyl-20-methyl-21-O-[[tris(isopropyll)silyl]-pregn-5-ene-3,21-diol
金刚烷溶液, 100ppm
(rac.)-a-胡萝卜素 ((6’RS)-b,e-Carotene) 标准品
乙腈中苯酰菌胺溶液 广电计量
2-Chloroethylvinyl ether 标准品
琥珀酸/丁二酸(标准品)[110-15-6]
γ-六六六(林丹) 100UG/ML,溶于正己烷
PUNYW25205128 Kanamycin B Sulfate
2,3,4,5-Tetrachlorophenol Solution 100ug/ml in Methylene chloride
Germanium Oxide (GeO2) 99.999%(有证书)