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D-2-Phenylglycine

2-Piperazinecarboxylic acid dihydrochloride

Potassium hydroxide

L-Phenylglycine

L(+)-Potassium hydrogen tartrate

1,4-Piperazinedipropanesulfonic acid

Potassium hydrogen 2-oxoglutarate

D(-)-Phenylglycinamide

Piperazine ferulate

Potassium hydrogen fluoride

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