NMR impurities in DMSO-d₆
Common impurity peaks observed in DMSO-d₆ (solvent residual ¹H: 2.50 (quint); ¹³C: 39.52). Full solvent residual table: NMR solvent residual peaks.
| Impurity | ¹H peaks (ppm) |
|---|---|
| Solvent residual | 2.50 |
| H₂O / HOD | 3.33 |
| CH₂Cl₂ | 5.76 |
| CHCl₃ | 8.32 |
| MeOH | 3.16 |
| EtOH | 3.44 / 1.06 |
| acetone | 2.09 |
| MeCN | 2.07 |
| EtOAc | 4.03 / 1.99 / 1.17 |
| Et₂O | 3.38 / 1.09 |
| THF | 3.60 / 1.76 |
| DMF | 7.95 / 2.89 / 2.73 |
| DMSO | 2.50 (overlaps solvent) |
| acetic acid | 1.91 |
| n-hexane / grease | 1.25 / 0.86 |
| silicone grease | 0.08 |
| TMS | 0.00 |
참고문헌 및 데이터 출처
- NMRShiftDB2 — open experimental NMR chemical shift database.
- Steinbeck, C.; Kuhn, S. NMRShiftDB — nmrshiftdb.nmr.uni-koeln.de
- Gottlieb, H. E.; Kotlyar, V.; Nudelman, A. NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities. J. Org. Chem. 1997, 62, 7512–7515.
- Fulmer, G. R. et al. NMR Chemical Shifts of Trace Impurities. Organometallics 2010, 29, 2176–2179.
- PubChem — compound identifiers and structure depictions (NIH/NCBI).
- Related tools: nmrdb.org (community NMR prediction reference).