Where does “dihidroxiacetona” come from?

dihidroxiacetona (Spanish) comes from Spanish acetona, from French acétone, from Latin acētum, from French -ate, from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

dihidroxiacetona (Spanish): dihydroxyacetone