Isopentane (iC5) vs n-Pentane (nC5), What’s the difference?

Neopentane, Pentane, Isobutane, Butane, 2-Methylpentane, 2-2-Dimethylbutane, Hexane, Cyclopentane, Propane, Alkane, Heptane, 2-3-Dimethylbutane, Pentene, 3-Methylpentane, Cyclohexane, Pentane Blend, Blowing Agent, Isopentane, iC5, IC-5, 70% iC5 and 30% nC5, Blend Pentane (70% iC5/30% nC5), Polyurethane Foam, Thermal Insulation, adhesion to metal sheets of the panel, 

Junyuan Petroleum Group