1,1'-(((2-hydroxypropane-1,3-diyl)bis(oxy))bis(2-hydroxy-6,1-phenylene))diethanone;USP Cromolyn Sodium Related Compound A; 1,3-Bis(2-acetyl-3-hydroxyphenoxy)-2-propanol; 2',2'-[(2-Hydroxytrimethylene)dioxy]bis[6'-hydroxyacetophenone;1,3-Bis(2-acetyl-3-hydroxyphenoxy)-2-hydroxypropane
