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. 2020 Oct 31;9(11):1071. doi: 10.3390/antiox9111071

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Scheme 1 — Chemical structure of taurine showing its two functional groups, the amino group and the sulfonic acid group. Taurine is zwitterionic at an isoelectric point of 5.12 [12]. The molecular weight of taurine is 125.15 g/mol and the molecular formula is C2H7NO3S [13].