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1,4-二乙基苯( PDEB )
HYPERSIL GOLD C8 5UM 50X75UM KAPPA COLUMN
PUNYW9737196 Nintedanib E-isomer (Intedanib E-isomer)
RUBBER TUBING FOR LABORAT. PURPOSES, ID.20 MM, WALL 3,5 MM
Oasis MCX SPE小柱,1ml/30mg,30um
甲醇中四氯化碳溶液标准物质
洗瓶,Teflon*FEP瓶体;Tefzel*ETFE螺旋盖/杆和吸管,250ml容量
CHROMATOGRAPHIC-COLUMNS, WITH SOCKET ST 29/32, VALVE AND PTFE-VALVE PLUG, 30 X 600 MM, 130 ML, BO
甲酸锂一水合物
纺织品中禁用偶氮染料(4-氨基偶氮苯)的测定