Table 8: The main signals present in 13C NMR functional groups of LA, MEOA, and diepoxide LA.

𝛿 (ppm) LAa 𝛿 (ppm) MEOAb 𝛿 (ppm) diepoxide LAAssignment

24.86–29.7922.69–34.1522.77–29.44–CH2–Carbons
54.59–57.2954.61–57.32(1) epoxide groups
128.27–130.38124.02–132.89–CH=CH–Olefinic carbons
180.49179.32178.79C=O Carboxylic acid

Notes: Linoleic acid (a); 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (b).