dextrose vs grape sugar

dextrose and grape sugar both are nouns.

Word	Noun	Adjective	Verb	Adverb
dextrose	Yes	No	No	No
grape sugar	Yes	No	No	No

As nouns, dextrose and grape sugar are synonyms defined as:

dextrose and grape sugar: an isomer of glucose that is found in honey and sweet fruits

Other synonyms of dextrose include dextroglucose.

dextrose (noun)	grape sugar (noun)
an isomer of glucose that is found in honey and sweet fruits	an isomer of glucose that is found in honey and sweet fruits