quintessential vs quintessence

quintessential is not a noun while quintessence is a noun.

Word	Noun	Adjective	Verb	Adverb
quintessential	No	Yes	No	No
quintessence	Yes	No	No	No

quintessential (noun)	quintessence (noun)
	the purest and most concentrated essence of something
	the most typical example or representative of a type
	the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies

quintessential (adjective)	quintessence (adjective)
representing the perfect example of a class or quality