Replacement O-rings for five-position NMR tube cleaner system

Spectrafuge^TM 16M microcentrifuge

Ethyl(2E)-2-cyano-3-(1H-indolyl-3-yl)acrylate

Dowtherm^® A

联二苯

Low-profile roller

Slides, microscope

载玻片

Ace European-style three-neck flask

Ace four-neck round-bottom flask

Ace precision-ground shaft

Ace vacuum manifold system

Aldrich^® cold-finger condenser