Pyridyl-tetrahydropyrans and process for preparing same

Pyridylalkyl phenyl ureas and their N-oxides

Pyridylmethyl esters of N-(phenoxyalkanoyl)peptide derivatives

Pyrimidin(4)-yl-(thiono)-(thiol)-phosphoric-(phosphonic)-acid es

Pyrimidine alcohols and derivatives thereof

Pyrimidines

Pyrimidines and process of making the same

Pyrimidinoaminoethyl ergoline derivatives

Pyrimido(4,3-b)(1,3)thiazin-6-ones

Pyrimido-2-benzazepines

Pyrimido[1,2-a][1,5]

Pyrimido[4,5-d][2]benzazepines

Pyrimido[4,5-d][2]benzazepines useful as sedatives and anxiolyti

Pyroglutamic acid derivatives and analogs

Pyroglutamic acid salts of t-butylamino-2,3-dihydroxypropane

Pyroglutamyl-histidyl-tryptophanyl-seryl-tyrosyl hydrazides

Pyrolysis compositions from silver salts of polycarboxylic acids

Pyrolysis of 2-sulfochloride benzoates

Pyrolysis of heavies formed in production of unsaturated dinitri

Pyrolysis of heavies formed in production of unsaturated dinitri