Alfa Romeo | Alfa-Bank | Alfa | Alfa Romeo in motorsport | Alfa Romeo 156 | Alfa Records | Alfa Laval | Alfa Kappa Pi | Lancia Alfa-12HP | Darbepoetin alfa | Alfa Romeo Spider | Alfa Romeo 147 | Alfa System | Alfa Romeo V6 engine | Alfa Romeo Tipo 312 | Alfa Romeo RL | Alfa Romeo Racing Italiano | Alfa Romeo MiTo | Alfa Romeo Giulietta | Alfa Romeo (Formula One) | Alfa Romeo Brera | Alfa Romeo BAT | Alfa Romeo 33 Stradale | Alfa Romeo 155 | Alfa Matrix | ALFA International | Alfa Corse |
Other compounds that contain the α-Keggin anion such as silicotungstic acid and phosphomolybdic acid are also commercially available at Aldrich Chemicals, Fisher Chemicals, Alfa Aesar, VWR Chemical, American Elements, etc.