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Table 6 Summary of force degradation studies

From: QbD green analytical procedure for the quantification of tolvaptan by utilizing stability indicating UHPLC method

Name

Time (h)

Assay (%w/w) in degradation sample

Mass balance (assay + total impurity)

Remark

Peak purity

Acid Degradation (0.2 N HCL)

6 h

98.43

99.99

Two degradation peaks peak 1 and peak2 were observed

Pass

Base Degradation (0.2N NaOH)

24 h

99.94

99.98

No degradation was observed

Pass

Oxidation (H2O2 30%)

6 h

99.72

100.1

No degradation was observed

Pass

Thermal (105 °C)

5 days

99.53

100.1

One degradation peak 1 was observed

Pass

Photolysis (sunlight)

3 days

99.82

100.3

One degradation peak 1 was observed

Pass