"49.77" . "Wiechert, R.; U S . Patent 3,234,093; February 8, 1966; assigned to Schering AG, Germany." . "-7.1" . "4" . "-1.3" . "C9H16N2O8" . "193.089149357" . "ChemAxon" . "PhysProp" . "1" . "-2.8" . "ALOGPS" . "4.07" . "9.03" . "182.5 \u00B0C" . "0" . "200-201" . "81.3" . "2" . "-1" . "C19H17ClN2O" .