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5-溴吡啶-3-甲酸
碱式碳酸镁,轻质
螺旋盖样品瓶 2mL 透明9mm 100个/包装
4,5-二甲氧基-2-硝基苯甲酸甲酯
PTFE-SLEEVES FOR JOINTS, FOR CONES ST 45/40 WALL THICK 0,05 mm
40mL 透明样品瓶套装,含24-414开口瓶盖
Diatomaceous Earth
O-ring, for desiccator article number 80554
气相填料
GLS80 stirred reactor cap with magnetic stirrer anchor type, complete with shaft, connection and screw cap, 4 ports