Thanks for your response..i got some single peak on HPLC but i dont know about NMR analysis. I alreadyt have protone NMR results but i need some assissitance to confirm about its purity...
I could also have a look at it. You can get an indication from the purity based on the relative integration. Also, what is your solvent? Keep in mind that a solvent with OD bonds will make any OH, NH, SH, CO2H, and sometimes CHO protons invisible due to exchanging.