aminoalkane vs methane series

aminoalkane and methane series both are nouns.

Word	Noun	Adjective	Verb	Adverb
aminoalkane	Yes	No	No	No
methane series	Yes	No	No	No

As nouns, methane series is a hypernym of aminoalkane; that is, methane series is a word with a broader meaning than aminoalkane:

aminoalkane: a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals
methane series: a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)

Other hypernyms of aminoalkane include alkane, alkane series, paraffin, paraffin series.

aminoalkane (noun)	methane series (noun)
a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals	a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)