title: [A simplified synthesis of 1,3-bis (2-carboxychromone-7-oxy)-2-hydroxypropane disodium salt (78012) (author's transl)].
mesh_terms: D004205:Cromolyn Sodium / Q000138:chemical synthesis*; D006634:Histamine H1 Antagonists / Q000138:chemical synthesis*
chemical_list: D006634:Histamine H1 Antagonists; C035060:1,3-bis(2-carboxychromone-7-oxy)-2-hydroxypropane; D004205:Cromolyn Sodium