Fig. 4: High-resolution 150.91 MHz ¹³C-NMR spectrum of lipid matter (Mann-S1).

a Low and b high field regions at 180–50 ppm and 10–40 ppm, respectively. Numbers associate the resonances with carbons within representative structures displayed in the inset. Assignments are further detailed in Supplementary Material, Table S2. S: chloroform; S1: methanol residue.