Опубликовано в "Бизнес, Бизнес", язык - English. 6 страниц.
Coumarin is a fragrant organic chemical compound in the benzopyrone chemical class, which is a colorless crystalline substance in its standard state. It is a natural substance found in many plants. Synthetic coumarin is made with the Perkinschen synthesis of salicylic acid and acetic anhydride. Еще
