PYRAZINE-2-CARBOXYLIC ACID (2-BROMO-3-PHENYL-ALLYLIDENE)-HYDRAZIDE

PYRAZINE-2-CARBOXYLIC ACID (2,5-DIMETHOXY-BENZYLIDENE)-HYDRAZIDE

PYRAZINE-2-CARBOXYLIC ACID (4-CHLORO-BENZYLIDENE)-HYDRAZIDE

Pyrex^?Addition funnel, graduated, pressure equalising, cylindrical with PTFE key

Pyrex^?Burettes, Schellbach, class AS with glass key

Pyrex^?Mortar

PYRIDINE-2-CARBOXYLIC ACID (1-(4-METHOXY-PHENYL)-PROPYLIDENE)-HYDRAZIDE

PYRIDINE-2-CARBOXYLIC ACID THIOPHEN-2-YLMETHYLENE-HYDRAZIDE

Pyrimidine-2-thiocarboxamide

Pyrrolidine-1-carbothioic dithioperoxyanhydride

Q 18 2-HYDROXY-3-(2-HYDROXY-3-METHYL-3-BUTEN-1-YL)-1,4-NAPHTHOQUINONE

Q-Tube^TMgas purging set

Q110 3,3'-METHYLENEBIS(2-HYDROXY-1,4-NAPHTHOQUINONE)

Q174 2-(4-(TRANS-DECAHYDRONAPHTH-2-YL)BUTYL)-3-HYDROXY-1,4-NAPHTHOQUINONE

Q312 TETRABROMO-1,4-BENZOQUINONE