PTFE-faced silicone septum, 8 mm

PureSolv^TM Micro replacement purification column

PYRAZINE-2-CARBOXYLIC ACID (3-HYDROXY-4-METHOXY-BENZYLIDENE)-HYDRAZIDE

PYRAZINE-2-CARBOXYLIC ACID (5-BROMO-2-HYDROXY-BENZYLIDENE)-HYDRAZIDE

Pyrex^® breakseal flask

Pyrex^® 破坏密封烧瓶

Pyrex^® Pestle

Pyrex^® Stopcocks, high vacuum

PYRIDINE-2-CARBOXYLIC ACID (1-(2-HYDROXY-PHENYL)-ETHYLIDENE)-HYDRAZIDE

PYRIDINE-2-CARBOXYLIC ACID (2-CHLORO-BENZYLIDENE)-HYDRAZIDE

PYRIDINIUM-1-ACETATE COMPOUND WITH PYRIDINE HYDROCHLORIDE