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Tectorigenin sodium sulfonate is a water-soluble antioxidant.

Tectorigenin sodium sulfonate is the product of tectorigenin sulfonated with sulfuric acid and mixed with saturated salt water. Tectorigenin sodium sulfonate has high water-solubility and good antioxidant properties[1].

[1] Han T, et al. In vitro evaluation of tectoridin, tectorigenin and tectorigenin sodium sulfonate on antioxidant properties. Food Chem Toxicol. 2012 Feb;50(2):409-14. DOI:10.1016/j.fct.2011.10.066