Assertion: dl phenylalanine | /r/HasProperty | hereinunder
Facets:
Source sentences:
text: It is well-known in the art that L-phenylalanine is prepared by an optical or racemic resolution of DL-phenylalanine (hereinunder referred to as phenylalanine), which is in turn prepared by way of a synthetic method using phenylacetaldehyde as a starting material.