doxepin and its Impurities
Doxepin is a psychotropic agent with tricyclic antidepressant and anxiolytic properties. It is a tertiary amine that can be presented as an and stereoisomers.. Reference standards of Doxepin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

![(Z)-3-(6',11'-Dihydro-[2,11'-bidibenzo[b,e]oxepin] PA 04 85540](https://www.pharmaffiliates.com/pimages/PA0485540.jpg)
(Z)-3-(6',11'-Dihydro-[2,11'-bidibenzo[b,e]oxepin]-11(6H)-ylidene)-N,N-dimethylpropan-1-amine Hydrochloride
(Z)-3-(6',11'-Dihydro-[2,11'-bidibenzo[b,e]oxepin]-11(6H)-ylidene)-N,N-dimethylpropan-1-amine Hydrochloride
Catalogue No.:PA 04 85540
CAS :
NA
Molecular Formula : C33H32ClNO2
Molecular Weight : 510.07

![(3-Dibenz[b,e]oxepin-11(6H)-ylid PA 04 85560](https://www.pharmaffiliates.com/pimages/PA0485560.jpg)
(3-Dibenz[b,e]oxepin-11(6H)-ylidenepropyl)methyl-carbamic Acid 2,2,2-Trichloroethyl Ester
(3-Dibenz[b,e]oxepin-11(6H)-ylidenepropyl)methyl-carbamic Acid 2,2,2-Trichloroethyl Ester
Catalogue No.:PA 04 85560
CAS :
141990-96-7
Molecular Formula : C21H20Cl3NO3
Molecular Weight : 440.75


Doxepin Related Compound B ((11RS)-11-[3-(dimethylamino)propyl]-6,11-dihydrodibenzo[b,e]oxepin-11-o (1225522)
Doxepin Related Compound B ((11RS)-11-[3-(dimethylamino)propyl]-6,11-dihydrodibenzo[b,e]oxepin-11-o (1225522)
Catalogue No.:PA USP1225522
CAS :
4504-88-5
Molecular Formula : NA
Molecular Weight : NA

![Doxepin Related Compound C ((E-3-(dibenzo[b,e]oxe PA USP1225533](https://www.pharmaffiliates.com/pimages/PAUSP1225533.jpg)
Doxepin Related Compound C ((E-3-(dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methylpropan-1-amine hydroch (1225533)
Doxepin Related Compound C ((E-3-(dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methylpropan-1-amine hydroch (1225533)
Catalogue No.:PA USP1225533
CAS :
4504-96-5
Molecular Formula : NA
Molecular Weight : NA

![(E)-3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methyl PA STI 088972](https://www.pharmaffiliates.com/pimages/PASTI088972.jpg)
(E)-3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methyl-N-(methyl-13C-d3)propan-1-amine hydrochloride
(E)-3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methyl-N-(methyl-13C-d3)propan-1-amine hydrochloride
Catalogue No.:PA STI 088972
CAS :
NA
Molecular Formula : C1813CH19D3ClNO
Molecular Weight : 319.85