The shelf-life values for 1 at pH 2.0, pH 6.0, and pH 8.0 at 25 °C were 4.3 years, 41 days, and 1.1 days, respectively (Table 2 ) which is highly significant for product formulation studies.
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Degradation kinetics of Andrographolide in aqueous solution, product identification and biological activity evaluation.
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