Research Article
Oxidative Transformation of Controlled Substances by Manganese Dioxide
Table 1
Physicochemical properties of ketamine, methamphetamine, morphine, and codeine.
| ā | Molecular formula | Molecular weight (g/mol) | pKa | Solubility (mg/mL) | Structure |
| Ketamine | C13H16ClNO | 237.7 | 7.5b | 250 | |
| Methamphetamine | C10H15N | 149.2 | 9.9a | NA | |
| Morphine | C17H19NO3 | 285.3 | 9.85b (phenol group) | 60 | |
| Codeine | C18H21NO3 | 299.4 | 9.8b | 434.8 | |
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[19], b[20].
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