Glyoxal CAS 107-22-2 (40% Aqueous Solution) Product Introduction Glyoxal (ethanedial, CAS 107-22-2) is the smallest dialdehyde and one of the most versatile crosslinking intermediates in industrial chemistry. Zorui supplies glyoxal as a 40% aqueous solution, a clear yellow liquid with 40.0% +/- 1.0% assay. Because it reacts with hydroxyl, and imine groups, glyoxal is the preferred formaldehyde-free crosslinker for textile finishing, paper wet-strength resins and leather