英文名称:Doxepin Hydrochloride Ep Impurity D As Maleate; (Z)-3-(Dibenzo[B,E]Oxepin-11(6H)-Yl; (Z)-3-(dibenzo[b,e]oxepin-11(6H)-ylidene)-N,N-dimethylpropan-1-amine maleate; (Z)-3-(Dibenzo[B,E]Oxepin-11(6H)-Ylidene)-N,N-Dimethylpropan-1-Amine Maleate; Doxepin Impurity D; Doxepin Hydrochloride Impurity D As Maleate