What is the chemical formula for onion powder?

Onion powder doesn't have a single chemical formula because it's a mixture of various compounds.

Here's why:

* Complex Composition: Onions themselves are made up of water, carbohydrates, proteins, vitamins, minerals, and various organic compounds like flavonoids and sulfur compounds.

* Dehydration: The process of making onion powder involves dehydrating onions and then grinding them into a fine powder. This process concentrates the existing compounds.

* Variability: The exact composition of onion powder can vary based on the type of onion used, the dehydration method, and other factors.

Therefore, it's not possible to give a single chemical formula for onion powder. Instead, it's a complex mixture of various organic and inorganic compounds.