Model have only quad polygons. No poles with more than 5 edges. Create in real-world scale, millimeters unit system. Aproximate diameter - 103 mm. All objects and materials have suitable names. Object are contained in a separate layer 'Molecule'. Scene have 4 PNG textures 4096x4096 (Diffuse 2pcs, Reflect, Normal)
For environment used 2 VrayLight, Target Ligth, HDRI map for reflection (include in archive).