Homotaurine
（重定向自Aminopropanesulfonic acid）
Homotaurine (3-amino-1-propanesulfonic acid (3-APS) or tramiprosate (INN)) is a synthetic organic compound. It is analogous to taurine, but with an extra carbon in its chain. It has GABAergic activity, apparently by mimicking GABA, which is it resembles.