4-Substituted-2,3-dihydro-1-benzoxepin-3,5-diones and tautomers

4-Substituted-2-oxoazetidine compounds

4-Substituted-2-oxoazetidine compounds and processes for the pre

4-Substituted-5-cyano-7-nitro-2-(.alpha.,.alpha.-difluoroalkyl)b

4-Sulfanilamidothiazole

4-Sulphomethyl substituted hydroxypyridone azo dyestuffs

4-Tert-butyl-N-sec-butyl-2,6-dinitroaniline

4-Tert.-butoxyphenylglycinonitrile and the preparation of D-(-)-

4-Thenyl-or furyl-6-amino-3,4-dihydropyrid-2-one-3,5-dicarboxyli

4-Thioxo-2-azetidinones

4-Tricyclo[5,2,1,0.sup.2,6 ]decyl-8-butanal

4-Trifluoromethylphenoxy-benzaldoximes

4-Trifluoromethylphenylhydrazinomethylene-malononitriles

4-Unsubstituted azetidinone derivatives and process for preparat

4-Ureido-2-acyl phenoxypropanolamine

4-[(Carboxyl- and sulfamyl-substituted alkyl)-amino] benzoic aci

4-[-(Alkoxy or polyhaloalkoxy)-benzamido]cyclohexanones

4-[2-(1,3-Dialkyl-1 ,2,3,4-tetra-hydropyrimidine-2,4-dione-5-car

4-[3-(Substituted amino)-2-hydroxypropoxy]-5,6,7,8-tetrahydro-1,

4-[4-(2,6-Diaminopyridylimino)]-2,5-cyclohexadien-1-one