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(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-cyanopropanoic acid: BD239730127273-06-797%; ￥1246.05g

2-Cyanopropanoic acid: BD626758632-07-597%; ￥731.01g

(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-cyanopropanoic acid: BD4461651820575-73-295%; ￥367.01g

(S)-2-((tert-Butoxycarbonyl)amino)-3-cyanopropanoic acid: BD11781845159-34-098%; ￥369.01g

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