D glucose is a common term used to describe a type of sugar that is present in various fruits, honey, and other natural sources. The chemical formula for glucose is C6H12O6. Synonyms for D glucose include blood sugar, grape sugar, and corn sugar. These different synonyms are often used depending on the context and source of the sugar. For example, blood sugar refers to the concentration of glucose in the bloodstream, while corn sugar is often used to describe a type of fructose-glucose syrup that is derived from corn starch. Regardless of the synonym used, glucose is an essential source of energy for the human body and is required for numerous biological processes.