The 2-Pyrazinecarboxamide, 5-methyl-, with the CAS registry number 5521-57-3, is also known as 2-Carbamoyl-5-methylpyrazine. It belongs to the product category of Amide. This chemical's molecular formula is C₆H₇N₃O and molecular weight is 137.14. What's more, its systematic name is 5-methylpyrazine-2-carboxamide. 

Physical properties of 2-Pyrazinecarboxamide, 5-methyl- are: (1)ACD/LogP: 0.09; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.09; (4)ACD/LogD (pH 7.4): 0.09; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 26.74; (8)ACD/KOC (pH 7.4): 26.74; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 46.09 Å²; (13)Index of Refraction: 1.566; (14)Molar Refractivity: 36.19 cm³; (15)Molar Volume: 110.8 cm³; (16)Polarizability: 14.34×10^-24cm³; (17)Surface Tension: 59.3 dyne/cm; (18)Density: 1.237 g/cm³; (19)Flash Point: 139.9 °C; (20)Enthalpy of Vaporization: 54.84 kJ/mol; (21)Boiling Point: 307.7 °C at 760 mmHg; (22)Vapour Pressure: 0.000711 mmHg at 25°C.

Preparation of 2-Pyrazinecarboxamide, 5-methyl-: this chemical can be prepared by 2,5-dimethyl-pyrazine at the temperature of 400 °C. This reaction will need reagents aq. NH₃, air. This reaction will also need catalyst MoO₃/Sb₂O₃/TiO₂. The yield is about 32%.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CC1=NC=C(N=C1)C(=O)N
(2)InChI: InChI=1S/C6H7N3O/c1-4-2-9-5(3-8-4)6(7)10/h2-3H,1H3,(H2,7,10)
(3)InChIKey: OYBQCUZBVHFPBU-UHFFFAOYSA-N