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

Ace precision-ground shaft

Ace reaction flask head w/ thermometer joint

Ace vacuum-sublimation apparatus

Aldrich^® can/drum adapters

Aldrich^® corrosive lecture-bottle gas regulator

Aldrich^® glass reference electrode

Aldrich^® 玻璃参比电极

Aldrich^® non-corrosive lecture-bottle gas regulator

Aldrich^® pressure filter/drying funnel assemblies with removable fritted disc

Aldrich^® tube fitting kit

Basic laboratory brush kit