4-Bromophenylhydrazine hydrochloride

4-BUTYL-1-IODO-2-METHYLBENZENE

4-BUTYL-2-METHYLPHENYL ISOCYANATE

4-N-BUTYLBENZENESULFONYL CHLORIDE

(4-Carboxybutyl)triphenylphosphonium bromide

4-CARBOXYPHENYLACETIC ACID

4-Chloro-1,2-diaminobenzene

4-CHLORO-1,3-DIMETHYLPYRAZOLO[3,4-B]PYRIDINE-5-CARBONYL CHLORIDE

4-CHLORO-1-METHYL-1H-PYRAZOLE-3-CARBALDEHYDE