Publicado no e em "Negócios, Negócios", idioma — English. 6 páginas.
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. Mais
