The 2-Ethylisonicotinonitrile, with the CAS registry number 1531-18-6, is also known as 4-Pyridinecarbonitrile, 2-ethyl-. Its EINECS registry number is 216-238-5. This chemical's molecular formula is C₈H₈N₂ and molecular weight is 132.16252. What's more, its IUPAC name is 2-Ethylpyridine-4-carbonitrile. 

Physical properties about 2-Ethylisonicotinonitrile are: (1)ACD/LogP: 1.40; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.4; (4)ACD/LogD (pH 7.4): 1.4; (5)ACD/BCF (pH 5.5): 6.77; (6)ACD/BCF (pH 7.4): 6.78; (7)ACD/KOC (pH 5.5): 136.82; (8)ACD/KOC (pH 7.4): 136.97; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 36.68 Å²; (13)Index of Refraction: 1.523; (14)Molar Refractivity: 38.37 cm³; (15)Molar Volume: 125.5 cm³; (16)Polarizability: 15.21×10^-24 cm³; (17)Surface Tension: 45.9 dyne/cm; (18)Density: 1.05 g/cm³; (19)Flash Point: 86.8 °C; (20)Enthalpy of Vaporization: 44.76 kJ/mol; (21)Boiling Point: 211.4 °C at 760 mmHg; (22)Vapour Pressure: 0.183 mmHg at 25 °C.

Preparation of 2-Ethylisonicotinonitrile: this chemical is prepared by reaction of Isonicotinonitrile with Ethanol. This reaction needs solvents t-Butyl peroxypivalate and H₂SO₄. The reaction time is 4 hours with reaction temperature of 75 °C. The yield is about 65 %.

You can still convert the following datas into molecular structure:
(1) SMILES: N#Cc1ccnc(c1)CC
(2) InChI: InChI=1/C8H8N2/c1-2-8-5-7(6-9)3-4-10-8/h3-5H,2H2,1H3
(3) InChIKey: WERAOGVQORFBMU-UHFFFAOYAG