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Due to the high water solubility of > 500 g/L, the vapor pressure of ≤ 0.18 Pa at 20 ºC, and the low adsorption potential, derived from a measured Koc-range of 316-642 (log Koc 2.5 - 2.8), C12-13AS Na (CAS 1231880-35-5) will mainly distribute into the water compartment. In water, sediment and soil the substance will rapidly biodegrade and therefore a prolonged exposure can be excluded.