**2.3. Identification of di(n‐ and isoalkyl(C4–C9))cyclohexane‐1,2‐dicarboxylates**

Identification of *cis* and *trans* isomers of the synthesized di(n‐ and iso‐nonyl)cyclohexane‐ 1,2‐dicarboxylates was done by chromatographic and spectrometric methods of GC/MS and ESI/MS.
