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Dl-2,4-dimethylphenylalanine

Dl-2,5-dimethylphenylalanine

Dl-2-hydroxyvaleric acid sodium

Dl-3,5-dimethylphenylalanine

Dl-3-amino-3-(2-cyano-phenyl)-propionic acid

Dl-4-ethylphenylalanine

Dl-5-fluorolysine hydrochloride

Dl-alaninol hydrochloride