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Ethyl 2-cyanocyclopropanecarboxylate: BD18795156447-11-198%; ￥1439.05g

(1R,2R)-rel-Ethyl 2-cyanocyclopropanecarboxylate: BD3034733999-56-298%; ￥1052.01g

Methyl 1-cyanocyclopropanecarboxylate: BD579736914-73-498%; ￥65.01g

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