You Searched For: 4,7,13,16,21-Pentaoxa-1,10-diazabicyclo[8.8.5]tricosane ([2.2.1]Cryptand, Kryptofix® 221)

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the is still displayed and you need assistance, please call us at 1-800-932-5000.

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