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| Ultraviolet Absorbance (1.00-cm cell vs. water): | |
| 400-254 nm | max. 0.01 |
| 240 nm | max. 0.08 |
| 230 nm | max. 0.20 |
| 220 nm | max. 0.30 |
| UV Cut-off, nm | max. 205 |
| Fluorescence Trace Impurities, in ppb, measured as Quinine Base: | |
| at 450 nm Emission | max. 0.5 |
| at Emission Maximum for Impurities | max. 1.0 |
| Assay (C6H12) (by GC, corrected for water) |
min. 99.5 % |
| Residue after Evaporation | max. 2 ppm |
| Substances Darkened by H2SO4 | Passes Test |
| Water (by KF, coulometric) | max. 0.01 % |