Assay (C₅H₁₂O) (by GC, corrected for water) >= 99.0 % 100.0 

Ultraviolet Absorbance (1.00-cm cell vs. water) - 350nm<= 0.01 < 0.01 

Ultraviolet Absorbance (1.00-cm cell vs. water) - 280nm<= 0.02 0.01 

Ultraviolet Absorbance (1.00-cm cell vs. water) - 254nm<= 0.1 0.1 

Ultraviolet Absorbance (1.00-cm cell vs. water) - UVCut-off, nm<= 215 202 

Fluorescence Trace Impurities, measured as QuinineBase - at 450 nm Emission<= 0.3 ppb < 0.1 

Fluorescence Trace Impurities, measured as QuinineBase - at Emission Maximum for Impurities<= 1.0 ppb < 0.1 

Peroxide (as H₂O₂) <= 1 ppm < 1 

Residue after Evaporation <= 3.0 ppm < 0.1 

Water (by KF, coulometric) <= 0.05 % < 0.01