In organic chemistry, an alkane, is a saturated hydrocarbon. Alkanes consist only of hydrogen and carbon atoms and all bonds are single bonds. Acyclic alkanes have the general chemical formula CnH2n+2. There are two main commercial sources: crude oil and natural gas.
This is a set of four molecule models, methane + ethane + propane + butane.
The graphical presentation may look a bit strange, but stacking the molecules like this keeps printing costs at a minimum.
Molecule model, 3D print, full color. Scientifically correct, scaling 1 Angstrom = 1,0 cm.