This article presents the results of humic acid studies in peat resources of the Khanty-Mansi Autonomous Area - Yugra by NMR¹³C spectroscopy. Their differences were revealed in the distribution of carbon atoms along structural fragments which allowed to diagnose the peculiarities of the drug molecular structure, depending on the botanical composition of the original peat and its degree of ... [Show full abstract] decomposition. It was found that humic acids of various peats have minor differences in the content of Cal. and Carom. The resulting spectroscopic information was used for an in-depth analysis of the features concerning peat humic acid structure of various origin. © 2016, International Journal of Pharmacy and Technology. All rights reserved.