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

Hettich^® Universal 320/320R centrifuge

Hettich^® Universal 320/320R 离心机

Oakton^® thermometer/timer

DuraSeal^TM laboratory stretch film

PROHEAT^® heat gun

Ace European-style three-neck flask

Ace four-neck round-bottom flask

Ace precision-ground shaft

Ace round-bottom flask with threaded side-arm

Aldrich^® cold-finger condenser

Aldrich^® glass pH electrode