DSA: A New Internal Standard for NMR Studies in Aqueous Solution
- 16 August 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 5 (19) , 3511-3513
- https://doi.org/10.1021/ol035347w
Abstract
The widely used internal standard for NMR studies in aqueous solution DSS (sodium 4,4-dimethyl-4-silapentane-1-sulfonate) can interact with cationic peptides, diminishing its value for such studies. This paper introduces DSA (4,4-dimethyl-4-silapentane-1-ammonium trifluoroacetate) as a new internal standard that does not suffer from this problem.Keywords
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