CAS RN: 299-42-3

Soil Adsorption / Mobility

Using a structure estimation method based on molecular connectivity indices(1), the Koc of (L)-ephedrine can be estimated to be 72(SRC). According to a classification scheme(2), this estimated Koc value suggests that (L)-ephedrine is expected to have high mobility in soil. The pKa of (L)-ephedrine is 9.65(3), indicating that this compound will exist predominantly in the cation form in the environment and cations generally adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(4).
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