In Specificity part-B, sample was subjected to various stress conditions [16], viz .different levels of acidic hydrolysis,alkaline hydrolysis, neutral hydrolysis, and oxidation conditions
at a concentration of 1mg/mL. The finished pharmaceutical preparation of OP is marketed in the form of solution; therefore, the drug was subjected to thermal and photo-degradation in dry as
well as in wet state. Quinine chemical actinometry was performed to justify the intensity of sunny day [19].