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

Glycine, Molecular Biology Grade-CAS 56-40-6-Calbiochem

甘氨酸

1,2,3,4-Tetrafluorobenzene

1,2,3,4-四氟苯

Breathe-Easy^® sealing membrane

Breathe-Easy^®封膜

DuraSeal^TM laboratory stretch film

Low-profile roller

Microcapillary tube Drummond Microcaps^®

Drummond Microcaps微量毛细管^®

Ace addition funnel

Ace European-style three-neck flask

Ace flat-bottom reaction flasks

ACE heavy-wall powder funnels