Acide propanoïque (propionic acid)
acide-propanoïque-propionic-acidPropionate (de sodium, calcium) sur Aliexpress/eBay comme food preservative, pas cher
Propionic acid -> Production
https://en.wikipedia.org/wiki/Propionic_acid#ProductionAcide butanoïque (butyric acid)
acide-butanoïque-butyric-acidButyrate salts sold as dietary supplement
How to make Butyric Acid (Grignard Reaction, from bromopropane) - NileRed
How to make Butyric Acid (Oxidation of butanol) - NileRed
Butyric acid -> Microbial biosynthesis
https://en.wikipedia.org/wiki/Butyric_acid#Microbial_biosynthesisMagic Acid: Fluorosulfonic acid + Antimony pentafluoride - ChemicalForce