Research Article

Validation of Simultaneous Volumetric and HPLC Methods for the Determination of Pridinol Mesylate in Raw Material

Table 5

Selectivity.

ConditionTime (h)% of pridinol mesylateRRT of degradation products

Acid (6 N HCl, reflux)0.59.80.29, 0.33, 0.4, 0.49, 1.24, 1.88, 2.26
Base (5 N NaOH, reflux)0.511.50.23, 0.33
Hydrogen peroxide 100 vol (reflux)0.5
68.2
0.33, 1.16, 1.6
Dry heat, 50°C (solid)1.599.50.35
Daylight exposure96100.4Non detected

RRT: relative retention time.