13,16,21,24-Hexaoxa-1,10-diazabicyclo-(8,8,8)-hexacosane 23978-09-8 4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo(8.8.8)hexacosane BRN 0620282 Crypt-2,2,2 Cryptand 222 Cryptand C 222 Cryptate 222 Cryptating agent 222 Cryptofix 222 EINECS 245-962-4 Kriptofix 222 Kryptand 222 Kryptofix 222 Ligand 222 NSC 264495