Assignment -CH=CH- -CH-OCOR -CH2-OCOR =CH-CH2-CH= OCO-CH2-
Approximated chemical shift value (δ) 5.4 5.3 4.3 2.8 2.3
Assignment CH2-CH=CH- OCOCH2CH3 -(CH2)n- CH2-CH3  
Approximated chemical shift value (δ) 2.0 1.6 1.3 0.9  
Table 2: Typical set of signals in a 1H-NMR spectrum of fatty acids.