DescriptionGuanidine-group-2D-skeletal.png English: The general structure of a guanidine Русский: Структура производных гуанидина Date 13 November 2006
гуанидина Date 20 October 2023 Source File:Guanidine-group-2D-skeletal.png by Benjah-bmm27 Author Д.Ильин: vectorization Other versions int .png int .svg