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

PYRROLIDINE-1-CARBODITHIOIC ACID 2-(2-OXO-2,3-DIHYDRO-INDOL-1-YL)-ETHYL ESTER

PYRUVIC ALDEHYDE 1-PHENYLHYDRAZONE

快速压具不锈钢套环, Quick Press SS collar

Quickfit^® Allihn condenser

Quickfit^® Drechsel bottle heads

Quickfit^® expansion adapter

Quickfit^® plain bends

QUINOLINE-2-CARBOXYLIC ACID (2-HYDROXY-5-NITRO-BENZYLIDENE)-HYDRAZIDE