Degradation products molar extinction coefficients

Inappropriate response factors may have been used for quantitation of impurities/degradation products (i.e., molar extinction coefficients of degradation products are less than those of the API). 

Chlorine dioxide readily degrades in aqueous solutions imder ultraviolet light. It has a broad UV absorption band with a maximum near 360 nm and a molar extinction coefficient of about 1,150 (M X cniy (Aieta and Berg 1986). It is postulated that the reaction in solution proceeds as in the gas phase, to give CIO and O. The initial photodissociation reaction is followed by rapid dark and light reactions to produce the products, chlorate (CIO3 ), hypochlorite (OCl ), and chloride (Cl ) (Zika et al. 

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