Natural normal paraffin hydrocarbons C„H2„+2 (" = 17-41) of the biological origin were investigated in terms of their compositions, structures, polymorph modifications and thermal phase transformations. Paraffin compositions were investigated from bee waxes (honeycombs and their covers), plant waxes (apple and pumpkin rinds) as well as from different parts of rat cerebrum (cortex, subcortex, brainstem, cerebellum, hemispheres, myelin, chromanin, etc.). X-ray diffractometry, chromatography, and high temperature X-ray diffractometry, as well as diagnostic methods established by the authors were used. For the first time experimental modeling was carried out for a bee wax paraffin composition consisting of a six-component solid solution with a superperiodic four-layer orthorhombic cell. The prepared mixture imitated the modeled paraffin composition (n = 23, 25, 27, 29, 31 и 33) and asymmetric distribution of the homologucs in the number n.
