Common NMR solvents
•Acetone- d6                    Ethanole- d6                   Acetonitrile- d3
•Formic acid- d2               Benzene- d6                  Methanole- d4
•Chloroform- d1                Nitromethane- d3         Deuteriumoxide-D2O
•Pyridine- d5                     Dichloromethane- d2   1,1,2,2- Tetrachloroethane- d2  Dimethylformamide- d7  Tetrahydrofurane- d8    Dimethylsulfoxide- d6
•Toluene- d8                      1,4- Dioxane- d8           Trifluoroacetic acid- d1
•NMR solvents are used as reference peaks
•to adjust the ppm values in the spectrum
•relative to TMS (tetramethyl silane)