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First Standard® 泰乐菌素
Unleaded Gasoline Standard - Unweathered Solution 5000ug/ml in Methanol
啶斑肟(比芬诺) BePure-25351YA
环丙津溶液,1000ppm
乙腈中乙羧氟草醚溶液
氨氮-标液
3.4.5.6-Tetrahydro-2-pyrimidinethiol Solution 100ug/ml in Ethyl acetate containing 0.1% of DTT
1-[(2S)-2-Amino-1-oxo-3-phenylpropyl]pyrrolidine
曲安奈德
NIST 牡蛎组织 标准物质