Pharmaceutical Reference Standards / Impurity Standards

Doxepin Hydrochloride
Doxepin EP impurity A
Doxepin EP Impurity B
Doxepin EP Imp C(Desmethyldoxepine)(USP
Doxepin EP Impurity C Hydrochloride
Doxepin EP Impurity D
Doxepin N-Oxide Impurity
Nor Doxepin Hydrochloride
Doxepin Related Compound D
Doxepin Related Compound E
(E/Z)-Doxepin Glucuronide
Doxepin Impurity 7
(E)-N-Acetyl-N-desmethyl Doxepin
1,6-Dihydrodoxepin
Dibenz[b,e]oxepin Carbamic Acid Derivative
(E)-N-Desmethyl-N-formyl Doxepin
Doxepin Impurity 3 (mixture of E,Z-isomers)
2-(Dibenz[b,e]oxepin-11(6H)-ylidene)acetaldehyde
(E)-Doxepin
(Z)-Doxepin
Doxepin EP Impurity D Hydrochloride
Doxepin Impurity 1
Doxepin Impurity 2
Doxepin-N-beta-D-Glucuronide
N-Nitroso N-Desmethyl Doxepin Impurity
(E)-Doxepin Hydrochloride
Doxepin Impurity 4
Methyl-2-(phenoxymethyl)benzoate
Doxepin EP Impurity B Hydrochloride Salt
N-Nitroso Desmethyl Cis-Doxepin
Doxepin N-Oxide Hydrochloride
N-Nitroso N-Desmethyl Doxepin EP impurity B

Isotope Labelled Compounds

Doxepin-D3
Doxepin-d3 Hydrochloride
Nor Doxepin-D3 Hydrochloride
Doxepin-D6 Hydrochloride
Doxepin-13CD3 Hydrochloride