Substituent	Structure	Name
Methyl	–CH₃	methyl–
Ethyl	–CH₂CH₃	ethyl–
Propyl	–CH₂CH₂CH₃	propyl–
Isopropyl	–CH(CH₃)₂	isopropyl– (or 1-methylethyl–)
Butyl	–CH₂CH₂CH₂CH₃	butyl–
tert-Butyl	–C(CH₃)₃	tert-butyl– (or 1,1-dimethylethyl–)
Phenyl	–C₆H₅	phenyl–
Benzyl	–CH₂C₆H₅	benzyl–
Fluoro	–F	fluoro–
Chloro	–Cl	chloro–
Bromo	–Br	bromo–
Iodo	–I	iodo–
Hydroxy	–OH	hydroxy–
Methoxy	–OCH₃	methoxy–
Amino	–NH₂	amino–
Nitro	–NO₂	nitro–
Oxo	=O	oxo–

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