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Organic Chemistry Forum for Graduate Students and Professionals / Re: Extra mass and extra H-1 peak in a synthetic intermediate
« Last post by Babcock_Hall on November 16, 2024, 11:56:41 AM »I would call our purification a partial success. When there is a small amount of water present in CDCl3, it usually shows up around 1.6 ppm. I looked over the H-1 NMR of the starting material, and there is a low, broad peak that might be a polymer. I am not sure whether I should ignore this signal in the starting material; I plan to buy some more of this starting material soon.