HOOC-CH2-CH2-CH2-CH2-COOH
HOOC-CH2-CH-CH2-COOH
CH3
HOOC-CH2-CH2-CH-COOH (2 izomeri optici)
CH3.
HOOC-CH - CH-COOH
CH3 CH3 (3 izomeri optici)
CH3
HOOC-C - CH2 -COOH
CH3
HOOC-CH2-CH2-COOH
HOOC-CH-COOH
CH3
Sublimeaza cei ce se afla in stare de agregare solida.