The 1-Methyl-2-phenyl-1, 2-dihydro-pyridazine-3, 6-dione, with the CAS registry number 13817-74-8, is also known as 1-Methyl-2-phenyl-1, 2, 3, 6-tetrahydropyridazine-3, 6-dione. This chemical's molecular formula is C₁₁H₁₀N₂O₂ and molecular weight is 202.2093. What's more, its IUPAC name is 1-Methyl-2-phenylpyridazine-3, 6-dione.

Physical properties about 1-Methyl-2-phenyl-1, 2-dihydro-pyridazine-3, 6-dione are: (1)ACD/LogP: 0.37; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 4; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 1; (6)Polar Surface Area: 40.62 Å²; (7)Index of Refraction: 1.602; (8)Molar Refractivity: 54.59 cm³; (9)Molar Volume: 159 cm³; (10)Polarizability: 21.64×10^-24 cm³; (11)Surface Tension: 51 dyne/cm; (12)Density: 1.271 g/cm³; (13)Flash Point: 139.2 °C; (14)Enthalpy of Vaporization: 55.86 kJ/mol; (15)Boiling Point: 317.2 °C at 760 mmHg; (16)Vapour Pressure: 0.000392 mmHg at 25 °C.

Preparation of 1-Methyl-2-phenyl-1, 2-dihydro-pyridazine-3, 6-dione: this chemical is prepared by reaction of Sulfuric acid dimethyl ester with 6-Hydroxy-2-phenyl-2H-pyridazin-3-one. The reaction time is 3 hours with reaction temperature of 140 - 150 °C. The yield is about 100 %.

Uses of 1-Methyl-2-phenyl-1, 2-dihydro-pyridazine-3, 6-dione: it is used to produce other chemicals. For example, it is used to produce 2-Methyl-1-phenyl-4-(toluene-4-sulfonylmethyl)-1, 2-dihydro-pyridazine-3, 6-dione. The reaction time is 1.5 hours with reaction temperature of -75 °C. The yield is about 82 %.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C2\C=C/C(=O)N(c1ccccc1)N2C
(2) InChI: InChI=1/C11H10N2O2/c1-12-10(14)7-8-11(15)13(12)9-5-3-2-4-6-9/h2-8H,1H3
(3) InChIKey: HJHFNYLISJKDGC-UHFFFAOYAL