O-Chem Structure

1 carbon

meth-

2 carbons

eth-

3 carbons

prop-

4 carbons

but-

5 carbons

pent-

6 carbons

hex-

Alkyl

Single bonded chain of carbons and hydrogens

for example: –CH₂–CH₃

Halogeno

F, Cl, Br, or I

Phenyl

Hydroxyl

–OH

Carbonyl

C=O

Ester

Carboxyl

Alkoxy

Amido

The R groups on the N can be C or H

Amino