ペンタデカンMeanings1nounpentadecanechemistryA straight-chain alkane hydrocarbon with 15 carbon atoms. Used in organic chemistry and as a reference compound.ペンタデカンは炭たん素そ数すう15の直ちょく鎖さアルカンである。Pentadecane is a straight-chain alkane with 15 carbon atoms.