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p-Aminophenyl β-D-Lactopyranoside
N-Methyl-d3-acetamide 标准品
4-Methoxyallylbenzene
Nordiazepam-d5 (phenyl-d5)
窄分布聚苯乙烯分子量标准物质
一溴一氯乙酰胺 标准品
Octachloronaphthalene 标准品
甲丙硫磷溶液,100ppm
L-精氨酸(P) 标准品(有证书,有纯度)
(3R,4S,5S,6S)-1-Aza-5-(t-butyldimethylsilyloxymethyl)-4-hydroxy-6-isopropyl-3-methyl-7-oxabicyclo[3.