4′-Carboxybenzo-15-crown-5

4′-羧基苯并-15-冠-5

4′-Pentyl-4-biphenylcarbonitrile

4'-戊基-4-联苯甲腈

4-Nitrophenyl dodecanoate

4-硝基苯基十二酸酯

4-tert-Butyl-N,N-dimethylaniline

4-叔丁基-N,N-二甲基苯胺

4,4′-Bis(bromomethyl)biphenyl

α,α′-Dibromo-p,p′-bitolyl

4,4′-Methylenebis(2-methylcyclohexylamine), mixture of isomers

4,4′-亚甲基双(2-甲基环己胺)，异构体混合物

4,5-Difluoro-2-methoxyphenylboronic acid

4,5-二氟-2-甲氧基苯硼酸

4(5)-(Hydroxymethyl)imidazole

4-(羟甲基)咪唑

5-(4-Fluorophenyl)-1,3-cyclohexanedione

5-(4-氟苯基)-1,3-环己二酮

5-(Fmoc-amino)-1-pentanol

5-(Fmoc-氨基)-1-戊醇