barbitone vs diethylbarbituric acid

barbitone and diethylbarbituric acid both are nouns.

Word	Noun	Adjective	Verb	Adverb
barbitone	Yes	No	No	No
diethylbarbituric acid	Yes	No	No	No

As nouns, barbitone and diethylbarbituric acid are synonyms defined as:

Other synonyms of barbitone include barbital, diethylmalonylurea, veronal.

barbitone (noun)	diethylbarbituric acid (noun)
a barbiturate used as a hypnotic	a barbiturate used as a hypnotic