Documents - COA, HNMR, 13CNMR, MASS, HPLC (by pharmacopoeia method with RT RRT results), IR and TGA will be provided with the purchase of Venlafaxine O-Desmethyl N-Desmethyl Impurity / O-Desmethyl N-Desmethyl Venlafaxine / N-Desmethyl Desvenlafaxine / N,O-Didesmethyl Venlafaxine