1-?(2,?3-?Dichloro-?4-?hydroxyphenyl)?butan-?1-?one is an intermediate in synthesizing (2,3-Dichloro-4-butyrylphenoxy)acetic Acid (D434935), impurity of Ethacrynic acid (E676000), which is a diuretic used to treat high blood pressure and swelling caused by congestive heart failure, liver failure and kidney failure. (2,3-Dichloro-4-butyrylphenoxy)acetic Acid is also used pharmaceutically and in agriculture.
