It is a glucoside of acetone cyanohydrin. This laid the foundation for synthetic acrylic resins created from acetone cyanohydrin. The resulting cyanohydrin is hydrolysed to mandelic acid. Of practical importance, hydantoins are obtained by condensation of a cyanohydrin with ammonium carbonate. The product is an O-silylated cyanohydrin. The cyanohydrin itself is derived from a separate aldehyde. Both are cyanohydrin esters of cis-3-[(Z)-2-chloro-3,3,3-trifluoropropenyl]-2,2-dimethylcyclopropanecarboxylic acid. It is the simplest cyanohydrin, being derived from formaldehyde. Crushing the tubers releases these compounds and produces acetone cyanohydrin. It is the simplest cyanohydrin and it is derived from formaldehyde. Via its cyanohydrin is also a precursor to vinclozolin. Other now abandoned precursors to acrylic acid include ethenone and ethylene cyanohydrin. In this case, the aglycone contains a cyanohydrin group. Acetone cyanohydrin is an intermediate en route to methyl methacrylate. For this reason, this cyanohydrin is also highly toxic.