The molar ratio of diacid chloride to the AHTD was 2:2 and the reaction was carried out at ambient ... Synthesis of 5-aryl-2H-tetrazoles, 5-aryl-2H-tetrazole-2-acetic acids, and [(4-phenyl-5-aryl-4H-1 ...

Changes are coming to the cold and cough aisle of your local pharmacy: U.S. officials are moving to phase out the leading decongestant found in hundreds of over-the-counter medicines, concluding ...