thiodiphenylamine vs phenothiazine

thiodiphenylamine and phenothiazine both are nouns.

Word	Noun	Adjective	Verb	Adverb
thiodiphenylamine	Yes	No	No	No
phenothiazine	Yes	No	No	No

As nouns, thiodiphenylamine and phenothiazine are synonyms defined as:

thiodiphenylamine and phenothiazine: a compound used primarily in veterinary medicine to rid farm animals of internal parasites

thiodiphenylamine (noun)	phenothiazine (noun)
a compound used primarily in veterinary medicine to rid farm animals of internal parasites	a compound used primarily in veterinary medicine to rid farm animals of internal parasites