amino vs aminic

amino is a noun but aminic is not a noun.

Word	Noun	Adjective	Verb	Adverb
amino	Yes	Yes	No	No
aminic	No	Yes	No	No

As adjectives, amino and aminic are synonyms defined as:

amino and aminic: pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia

amino (noun)	aminic (noun)
the radical -NH2

amino (adjective)	aminic (adjective)
pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia	pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia