| Laboratory | Formula | Tin content % |
| J. T. Baker | SnCl2・2H2O | 56.6 |
| Oxford Chem Serve | SnCl2・2H2O | 56.6 |
| Fisher Scientific | SnCl2・2H2O | 56.6 |
| Sigma-Aldrich | SnCl2・2H2O | 56.6 |
| Sigma-Aldrich | SnCl2 | Trace |
| American Elements Co. | SnCl2 | 62.6 |
| ALS Environmental | SnCl2 | 62.6 |
| Alfa Aesar Johnson M. Co | SnCl2 | 62.6 |
| This Investigation | ||
| Tin Content |
| 62.2 |
| Copper |
| 0.002 |
| Iron |
| 0.013 |
| Lead |
| 0.010 |