acetaldehyde vs ethanal

acetaldehyde and ethanal both are nouns.

Word	Noun	Adjective	Verb	Adverb
acetaldehyde	Yes	No	No	No
ethanal	Yes	No	No	No

As nouns, acetaldehyde and ethanal are synonyms defined as:

acetaldehyde and ethanal: a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs

acetaldehyde (noun)	ethanal (noun)
a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs	a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs