tetrasodium pyrophosphate vs sodium pyrophosphate

tetrasodium pyrophosphate and sodium pyrophosphate both are nouns.

Word	Noun	Adjective	Verb	Adverb
tetrasodium pyrophosphate	Yes	No	No	No
sodium pyrophosphate	Yes	No	No	No

As nouns, tetrasodium pyrophosphate and sodium pyrophosphate are synonyms defined as:

tetrasodium pyrophosphate and sodium pyrophosphate: a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents

tetrasodium pyrophosphate (noun)	sodium pyrophosphate (noun)
a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents	a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents