C NMR Spectra of Secondary Reference Compounds

3-(Trimethylsilyl)-l-propanesulfonic acid sodium salt (sodium 4,4-+limethyl+F silapentane-1-sulfonate DSS) 

3 130 immR Spectrum of a Mixture of Common Nondeuterated Solvents 

The broad-band-decoupled NMR spectrum (125 MHz, 6 in ppm relative to TMS) of a CDCI3 sample with 20 common solvents (0.05-0.4 vol%) shown below serves as a guide to identify possible solvent impurities. Chemical shifts of signals marked with an asterisk ( ) may change up to a few ppm if the sample contains solutes having functional groups that can form hydrogen bonds. 

DMF dimethyl formamide THF tetrahydrofuran EGDME ethylene glycol dimethyl ether. 

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