Sigma-Aldrich
圆形晶体窗片, Round crystal window
Safe-LabTMThermometer/Tubing Adapter
Sartorius mLINE?mechanical pipettor
Sartorius mLINE?机械移液器
Schlenk Kjeldahl reaction and storage flask
Scissor-handle forceps
Solid-phase peptide synthesis flask
Wilmad?NMR tubes 10 mm diam., precision
Nalgene?narrow-mouth bottles
Wilmad?NMR tubes 3 mm diam., microsample