Description: Dimethylpropiothetin hydrochloride (s,s-Dimethyl-β-propionic acid thetine) represents the hydrochloride variant of dimethylpropiothetin. This compound is extractable from marine algae and serves as a precursor to dimethylsulfide (DMS). Additionally, it plays a role in the osmoregulation processes within Hymenomonas carterae.