SDA is alcohol to which denaturing materials have been added. Title 27 Code of Federal Regulations part 21 lists all the SDA formulas authorized by TTB. Manufacturers may use SDA in the manufacture of any product that is not intended for consumption. Generally, SDA is used in cosmetic products but its use extends to pharmaceuticals, chemical manufacturing, and products where SDA is the solvent or reactant.
Alcohol and Tobacco Tax and Trade Bureau
Nonbeverage Products Laboratory
6000 Ammendale Road
Beltsville, MD 20705-1250