2-[(11Z)-11-(3-dimethylaminopropylidene)-6H-benzo[c][2]benzoxepin-2-yl]acetic acid hydrochloride 2-[(11Z)-11-(3-dimethylaminopropylidene)-6H-benzo[c][2]benzoxepin-2-yl]ethanoic acid hydrochloride 140462-76-6 AL-4943A ALO-4943A KW-4679 Opatanol Pataday Patanase 11-((Z)-3-(Dimethylamino)propylidene)-6,11-dihydrodibenz(b,e)oxepin-2-acetic acid hydrochloride ALO4943A Dibenz(b,e)oxepin-2-acetic acid, 11-(3-dimethylamino)propylidene)-6,11-dihydro-, hydrochloride, (Z)- KW 4679 OLOPATADINE HYDROCHLORIDE Patanol