Methyl (Z)-2-(11-(3-(dimethylamino)propylidene)-6,11-dihydrodibenzo(b,e)oxepin-2-yl)acetate; (11Z)-11-(3-(Dimethylamino)propylidene)-6,11-dihydrodibenz(b,e)oxepin-2-acetic acid methyl ester

This ester form might be used in the synthesis/purification of Olopatadine or studied as a related compound, often found in chemical supply catalogs for research or drug development. That chemical name, Methyl (Z)-2-(11-(3-(dimethylamino)propylidene)-6,11-dihydrodibenzo(b,e)oxepin-2-yl)acetate, refers to Olopatadine methyl ester, a key intermediate or derivative related to the antihistamine drug Olopatadine, used mainly for allergic conjunctivitis (eye drops) and nasal allergies (nasal spray) to relieve itching and inflammation.