methylene blue vs methylthionine chloride

methylene blue and methylthionine chloride both are nouns.

Word	Noun	Adjective	Verb	Adverb
methylene blue	Yes	No	No	No
methylthionine chloride	Yes	No	No	No

As nouns, methylene blue and methylthionine chloride are synonyms defined as:

methylene blue and methylthionine chloride: a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning

methylene blue (noun)	methylthionine chloride (noun)
a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning	a dark green dye used as a stain, an antiseptic, a chemical indicator, and an antidote in cyanide poisoning