Zhang Q-Z, Li C-C, Gu X-F, Yang P-H, Zhang X. Reaction of Phthalic Anhydride and Ethylenediamine. ajc [Internet]. 2011 Mar. 22 [cited 2024 Aug. 26];23(7):2969-72. Available from: https://asianpubs.org/index.php/ajchem/article/view/10524