The 6-Methyl-3-oxo-2,3-dihydropyridazine-4-carboxylic acid with cas registry number of 74557-73-6, belongs to the following product categories: (1)Carboxylic Acids; (2)Pyrazines, Pyrimidines & Pyridazines; (3)Building Blocks; (4)Pyridazine; (5)Carboxylic Acids; (6)Pyrazines, Pyrimidines & Pyridazines. Its systematic name is 6-methyl-3-oxo-2H-pyridazine-4-carboxylic acid. And its IUPAC name is 3-methyl-6-oxo-1H-pyridazine-5-carboxylic acid.

Physical properties about this chemical are: (1)# of Rule of 5 Violations: 0; (2)#H bond acceptors: 5; (3)#H bond donors: 2; (4)#Freely Rotating Bonds: 1; (5)Polar Surface Area: 78.76 Å²; (6)Index of Refraction: 1.634; (7)Molar Refractivity: 36.12 cm³; (8)Molar Volume: 100.9 cm³; (9)Polarizability: 14.32×10^-24cm³; (10)Surface Tension: 59.4 dyne/cm.

You can still convert the following datas into molecular structure: 
(1)SMILES:O=C(O)\C1=CC(/C)=N\NC1=O;
(2)InChI:InChI=1/C6H6N2O3/c1-3-2-4(6(10)11)5(9)8-7-3/h2H,1H3,(H,8,9)(H,10,11);
(3)InChIKey:MHYFUPKDKSSFRZ-UHFFFAOYAY;
(4)Std. InChI:InChI=1S/C6H6N2O3/c1-3-2-4(6(10)11)5(9)8-7-3/h2H,1H3,(H,8,9)(H,10,11);
(5)Std. InChIKey:MHYFUPKDKSSFRZ-UHFFFAOYSA-N