1-Thia-4,8-diazaspiro(4.5)decan-3-one, 8-(1,4-benzodioxan-2-ylmethyl)-4-ethyl-, monohydrochloride 24798-34-3 8-(1,4-Benzodioxan-2-ylmethyl)-4-ethyl-1-thia-4,8-diazaspiro(4.5)decan-3-one hydrochloride