vitamin K3 vs menadione

vitamin K3 and menadione both are nouns.

Word	Noun	Adjective	Verb	Adverb
vitamin K3	Yes	No	No	No
menadione	Yes	No	No	No

As nouns, vitamin K3 and menadione are synonyms defined as:

vitamin K3 and menadione: a synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position

vitamin K3 (noun)	menadione (noun)
a synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position	a synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position