4,4'-Methylene-bis-(2-ethyl-5-methyl imidazole) and methods of p

4,4'-methylene-bis-(3-chloro-2,6-dialkylphenylisocyanates)

4,4'-Methylenebis(2,6-diisobutylphenol)

4,4'-Stilbenebis-pyridooxazoles and related optical brighteners

4,4'-Thio-bis-(dialkylphenol)/formaldehyde condensates and proce

4,4'-Thiodiphenol-formaldehyde condensation products

4,4'-[9H-fluoren-9-ylidenebis (methylene)]bispyrimidine for trea

4,4,10,10-tetranitro-6,8-dioxatridecane-1,13-diol polyformal and

4,4,4-Trichloro-1-pyridyl-but-2-ene-1-ones and fungicides made t

4,4,4-Trichlorobutyl methanesulfonate

4,4,5,5, tetrasubstituted imidazolines

4,4,5,5-Tetradehydro-.omega.-aryl-11-deoxy-PGE.sub.1 , analogs

4,4,5,5-Tetradehydro-.omega.-aryl-PGE.sub.1 analogs

4,4,5,5-Tetradehydro-.omega.-aryl-PGF.sub.1.alpha. analogs

4,4,5,5-Tetradehydro-11-deoxy-PGE.sub.1 analogs

4,4,5,5-Tetradehydro-PGE.sub.1 analogs

4,4,5,5-Tetradehydro-PGF.sub.1.sub..alpha. analogs

4,4,5-trimethyl-2-(2-nitro-4-methylsulfonylbenzoyl) cyclohexane-

4,4,6-trimethylhexahydropyrimidine as an epoxy curing agent

4,4-(disubstituted) cyclohexan-1-one monomers and related compou