NMR Chemical Shifts of Trace Impurities

J&K provides this tool with table of NMR chemical shifts of trace impurities that can support you in analysis of the sample with common organic solvents, impurities in synthesis and deuterated solvents.

References

1. NMR Chemical Shifts of Trace Impurities: Industrially Preferred Solvents Used in Process and Green Chemistry
   Org. Process Res. Dev. 2016, 20, 3, 661–667