Heptane is a straight-chain alkane with seven carbon atoms. It has been found in Jeffrey pine (Pinus jeffreyi). It has a role as a non-polar solvent and a plant metabolite. It is a volatile organic compound and an alkane.
Related images
Absorption spectra of ZnPc-6d in dry n-heptane, after addition of two drops of methanol (red line) and followed by five more drops of methanol and five drops dichloromethane (the green line).