alkane vs aliphatic compound

alkane and aliphatic compound both are nouns.

Word	Noun	Adjective	Verb	Adverb
alkane	Yes	No	No	No
aliphatic compound	Yes	No	No	No

As nouns, aliphatic compound is a hypernym of alkane; that is, aliphatic compound is a word with a broader meaning than alkane:

alkane: a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)
aliphatic compound: organic compound that is an alkane or alkene or alkyne or their derivative

alkane (noun)	aliphatic compound (noun)
a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)	organic compound that is an alkane or alkene or alkyne or their derivative