Hợp chất

Nhóm chức

Ví dụ

Phenol

Ether

Aldehyde

Ketone

Carboxylic acid

Ester

Amine

–OH (gắn trực tiếp lên vòng benzene)

–O–

–CH hay –CHO

–C hay –CO–

–COOH hay –CO–

–C–O hay –COO–

–NH2 (amine bậc 1)

–NH– (amine bậc 2)

C6H5–OH hay

(vòng benzene)

CH3–O–CH3

H–CHO; CH3–CHO

CH3–CO–CH3

H–COOH; CH3–COOH

HCOO–CH3; CH3–COO–C2H5

CH3–NH2

CH3–NH–CH3