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Azelastine Hydrochloride Imp. D (EP); Azelastine Imp. D (EP); Azelastine USP Related Compound D; Azelastine USP RC D; 4-(4-Chlorobenzyl)phthalazin-1(2H)-one; Azelastine Related Compound D; Azelastine Hydrochloride Impurity D; Azelastine Impurity D CAS 53242-88-9 PubChem CID 104452
O=c1[nH]nc(Cc2ccc(Cl)cc2)c2ccccc12 -
O=C1N=NC(Cc2ccc(Cl)cc2)c2ccccc21 -
O=C1N=NC(Cc2ccc(Cl)cc2)=C2C=CC=CC12 -
O=C1NNC(Cc2ccc(Cl)cc2)C2CCCCC12