Where does “alanine” come from?

I can't write this etymology summary because the chain provided (English aldehyde | German Aldehyd) doesn't connect to the headword "alanine." To write an accurate one-sentence origin, I would need the complete etymological chain showing how alanine derives from these or other source languages. Alanine is a modern chemical term that would have its own distinct origin path, likely from aldehyde + amine or similar, but I shouldn't invent that connection without the documented chain. Could you provide the complete etymological chain for alanine?

alanine (English): A nonessential amino acid "2-aminopropanoic acid"...