Sigma-Aldrich
1-Naphthalenesulfonic acid
1-萘磺酸
N-Ethyl-o-crotonotoluidide
克罗米通
Duran?Erlenmeyer narrow-neck flasks
Duran?Erlenmeyer wide-neck flask
Duran?filtering flask
Duran?graduated laboratory bottles, without caps
Duran?带刻度的实验室瓶,无盖
Duroplan petri dishes
Easy-Read?thermometer
Molymod?Atoms and Bonds
Nalgene?stopcock
Nalgene?旋塞