Assertion: phenylalanine | /r/CapableOf | contain as major component
Facets:
Source sentences:
text: These objects of this invention may be attained by a process for the preparation of a precursor of phenylalanine containing as a major component 5-benzylhydantoin, which comprises reacting in an aqueous medium, a bisulfite addition salt of phenylacetaldehyde with cyanide and carbonate ions, each being in a molar ratio of equimol or more based on said bisulfite addition salt and ammonium ion in a molar ratio of 2 or more based on said carbonate ion.