a) acidul 2-metil-butanoic: CH3-CH2-CH*(CH3)-COOH
b) 2-metil-butanal: CH3-CH2-CH(CH3)-CH=O
c) 3-metil-2-pentanona: CH3-CO-CH(CH3)-CH2-CH3
d) acetatul de secbutil: CH3-CO-O-CH(CH3)-CH2-CH3
e) 2-butanol: CH3-CH(OH)-CH2-CH3
f) 3-metil-hexan:CH3-CH2-CH(CH3)-CH2-CH2-CH3