The 1,2-Pyridazinedicarboxylicacid, 3,6-dihydro-, 1,2-diethyl ester, with the CAS registry number 35691-30-6, is also known as Diethyl 1,2,3,6-tetrahydropyridazine-1,2-dicarboxylate. This chemical's molecular formula is C₁₀H₁₆N₂O₄ and molecular weight is 228.25. What's more, its systematic name is diethyl 3,6-dihydropyridazine-1,2-dicarboxylate. 

Physical properties of 1,2-Pyridazinedicarboxylicacid, 3,6-dihydro-, 1,2-diethyl ester are: (1)ACD/LogP: 0.39; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 6; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 4; (6)Polar Surface Area: 59.08 Å²; (7)Index of Refraction: 1.504; (8)Molar Refractivity: 56.35 cm³; (9)Molar Volume: 190.1 cm³; (10)Polarizability: 22.33×10^-24 cm³; (11)Surface Tension: 44.9 dyne/cm; (12)Density: 1.2 g/cm³; (13)Flash Point: 128.2 °C; (14)Enthalpy of Vaporization: 52.75 kJ/mol; (15)Boiling Point: 288.3 °C at 760 mmHg; (16)Vapour Pressure: 0.00236 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=C(OCC)N1N(C(=O)OCC)C\C=C/C1
(2)InChI: InChI=1/C10H16N2O4/c1-3-15-9(13)11-7-5-6-8-12(11)10(14)16-4-2/h5-6H,3-4,7-8H2,1-2H3
(3)InChIKey: QJTXVDDNYXLLDA-UHFFFAOYAK