Disodium cromoglycate15826-37-6100 % similar Cromolyn16110-51-374 % similar 5-Methoxyflavone42079-78-735 % similar 4-Oxo-4H-1-benzopyran-2-carboxylic acid4940-39-034 % similar Pirenoxine sodium51410-30-134 % similar Propafenone54063-53-532 % similar Levobunolol47141-42-432 % similar Propafenone hydrochloride34183-22-731 % similar Carazolol57775-29-830 % similar