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Overview of residual solvent determination (LOD = limit of detection; ppm: parts per million)
| Solvent | Expected retention time | Class of solvent | Result |
|---|---|---|---|
| Acetonitrile | 5.9 min | Class 2 | < LOD |
| Dimethyl sulfoxide | 5.5 min | Class 3 | < LOD |
| Ethanol | 5.2 min | Class 3 | < 5000 ppm |
