Empirical Formula: C₁₁H₁₈O₅
Molecular Weight: 230.2576 
Structure of Butanedioic acid,2-(2-oxopropyl)-, 1,4-diethyl ester (CAS NO.1187-74-2):

Index of Refraction: 1.439
Molar Refractivity: 56.54 cm³
Molar Volume: 214.5 cm³
Polarizability: 22.41×10^-24cm³
Surface Tension: 34.9 dyne/cm
Density: 1.073 g/cm³
Flash Point: 134.3 °C
Enthalpy of Vaporization: 55.37 kJ/mol
Boiling Point: 312.7 °C at 760 mmHg
Vapour Pressure: 0.000521 mmHg at 25°C 
Synonyms of Butanedioic acid,2-(2-oxopropyl)-, 1,4-diethyl ester (CAS NO.1187-74-2): Diethyl 2-(2-oxopropyl)succinate ; Diethyl 2-acetonylsuccinate

Safety Statements: 23-24/25 
S23:Do not breathe vapour. 
S24/25:Avoid contact with skin and eyes.