4-Oxovaleric acid, 3-(diethylamino)-2,2-dimethylpropyl ester, hydrochloride 69226-66-0 Laevulinsaeureester des 3-diaethylamino-2,2-dimethyl-1-propanol hydrochlorid [German] Pentanoic acid, 4-oxo-, 3-(diethylamino)-2,2-dimethylpropyl ester, hydrochloride Valeric acid, 4-oxo-, 3-(diethylamino)-2,2-dimethylpropyl ester, hydrochloride