Sigma-Aldrich
Quickfit® ground-glass stoppers
Quickfit® separating funnels
Quickfit® Soxhlet extractor body
Quickfit® three-neck round-bottom flasks with vertical necks
Real Crystal® IR sample cards
Real Crystal® 红外样品卡片
Rigid PTFE sleeve
Rubber ring for Quickfit® cone/screw thread adapter
Schlenk reaction and storage tube
Single-bulb ball-tube
Spinstar® magnetic stirring bar
Stainless steel 304 syringe needle