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5-Oxopiperazine-2-carboxylic acid hydrochloride: BD7510031922857-21-395%; ￥930.01g

Piperazine-2-carboxylic acid dihydrochloride: BD94763022-15-998%; ￥548.0100g

(R)-1-Boc-Piperazine-2-carboxylic acid: BD19922278788-60-697%; ￥140.0250mg

(S)-Piperazine-2-carboxylic acid dihydrochloride: BD2491158663-69-595%; ￥468.025g

(R)-1-Boc-Piperazine-3-carboxylic acid: BD19105192330-11-397%; ￥56.0250mg

(R)-Piperazine-2-carboxylic acid dihydrochloride: BD9704126330-90-398%; ￥30.0250mg

Piperazine-2-carboxylic acid: BD24332762-32-597%; ￥268.0100g

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