Table 4. Melting Point (Tm) and Dissolved API of PRM, MEL, and the Six Salts.
| solids | Tm (°C) | dissolved PRM (mg mL–1) | solids | Tm (°C) | dissolved MEL (mg mL–1) |
|---|---|---|---|---|---|
| PRM | 198–200 | 0.39 ± 0.01 | MEL | 259 (dec) | 0.08 ± 0.02 |
| PRM-4AP | 213–216 | 1.08 ± 0.02 | MEL-4AP | 227–232 | 0.68 ± 0.05 |
| PRM-4DMP | 207–209 | 1.07 ± 0.01 | MEL-4DMP | 212–216 | 0.85 ± 0.02 |
| PRM-PPZ | 208–213 | 0.43 ± 0.04 | MEL-PPZ | 246–251 | 0.28 ± 0.03 |