l-carnitine caffeine L Carnitine C 500 Competition (With Caffeine) Organic L-Carnitine Coffee – Energy
Description
If carnitine is hydroxylated, you can could put a hydroxide in the end, like 3-hydroxy octadecenoyl carnitine (C18:1-OH)

Interestingly, most individuals with ASD and MD do not have a specific genetic mutation to explain the MD, raising the possibility of that MD may be acquired, at least in a subgroup of children with ASD

It might leave trace amounts in your mouth, though
Palmitoylcarnitine, CID=461
