5-Heterocyclic-1,2,3,6-tetrahydro-4(5H) pyrimidinone

5-Heterocyclicalkyl-2-aryl-3-halo 1,5-benzothiazepin-4(5H)-ones

5-Homothiochromanyl-(di)-phosphoric (-phosphonic) acid esters

5-Hydroxy-.alpha.-(substituted aminomethyl)-m-xylene-.alpha.,.al

5-Hydroxy-5-substituted phenyl-pyrrolidones and piperidinones

5-Hydroxydiphenyl sulfoxide compositions

5-Hydroxyfurochromones

5-Hydroxyhexahydropyrimidine

5-Hydroxyl-1,2,3-triazole-4-carboxamide nucleoside

5-Iodo-6-oxo-3-(2'-arylmethoxy-1'-hydroxyethyl)-4-hydroxy-hexano

5-Keto-L-ascorbic acid-5,5-dimethyl ketal, derivatives thereof a

5-Mercury derivatives of 5,6-dihydroprostacyclin compounds

5-Methyl-alpha[(methylthio)methyl]-2-furan acrolein

5-Methyl-furfuryl furfuryl ether

5-Nitropyrimidine derivatives

5-Nitropyrimidines

5-Nitrothiazolyl-2-azophenyl disperse dyes

5-Norbornene-2-methyl phosphites and phosphate

5-Organosulfonyl, 5-organosulfinyl or 5-haloalkanoyl-benzofuran-

5-Oxa phenyl- and phenoxy-substituted prostaglandin .beta., anal