(4-Hydroxy-3-methoxyphenyl)acetaldehyde

(4-Hydroxy-N-methyl-L-leucine)cyclosporine

(4-Hydroxybutyl) hydrogen succinate

(4-Hydroxypent-3-en-2-onato-O4)(1-methyl-3-oxobut-1-enyl hydrogen carbonato-O')magnesium

(4-Hydroxyphenyl) 3-pyridyl ketone

(4-Hydroxyphenyl)((3-methoxy-1-methyl-3-oxo-1-propenyl)amino)acetate potassium

(4-Hydroxyphenyl)(2-isopropyl-1-benzofuran-3-yl)methanone

(4-Hydroxyphenyl)amino-mitomycin/nucleotide 2GC10 complex

(4-Hydroxyphenyl)dimethylsulfonium chloride

(4-Hydroxyphenyl)glycylamoxicillin, D-

(4-Imidazo(2, 1-b)(1, 3)benzothiazol-2-ylphenyl)acetic acid

(4-Iodoacetanilido)iminodiacetic acid

(4-Iodophenyl)amino-mitomycin/nucleotide 2GC10 complex

(4-Isobutylphenyl)acetonitrile

(4-Isopropyl-1-methyl-5-(3-nitrophenylthio)-1H-imidazol-2-yl)methanol

(4-Isopropyl-5-(3-nitrophenylthio)-1-n-propyl-1H-imidazol-2-yl)methanol

(4-Methoxy-3, 6-dioxo-1, 4-cyclohexadien-1-yl)methyl methylcarbamate

(4-Methoxy-4-oxo-2-butenyl)triphenylphosphonium bromide

(4-Methoxybenzyl)triphenylphosphonium chloride

(4-Methoxybutylidene)cyclohexane