半岛bd体育手机客户端 性质
Sigma-Aldrich
PYRAZINE-2-CARBOXYLIC ACID (4-DIETHYLAMINO-BENZYLIDENE)-HYDRAZIDE
Pyrex?breakseal flask
Pyrex?破坏密封烧瓶
Pyrex?Stopcocks, high vacuum
PYRIDINE-2-CARBOXYLIC ACID (1-(3,4-DIMETHOXY-PHENYL)-ETHYLIDENE)-HYDRAZIDE
PYRIDINE-2-CARBOXYLIC ACID FURAN-2-YLMETHYLENE-HYDRAZIDE
PYRROLIDINE-1-CARBOXYLIC ACID (4-CHLORO-PHENYL)-AMIDE
快速压具不锈钢套环, Quick Press SS collar
Quickfit?double surface (Davies) condenser
Quickfit?expansion adapter
QUINOLIN-4-YL-(5-VINYL-1-AZA-BICYCLO(2.2.2)OCT-2-YL)-METHANOL
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