Molecular Formula: C₁₂H₂₆N₂O₄

Chemical Name
1,10-diaza-4,7,13,16-tetraoxacyclooctadecane
1,4,10,13-tetraoxa-7,16-diaza-cyclooctadecane
1,7,10,16-tetraoxa-4,13-diazacyclooctadecane
diaza-18-crown-6
kryptofix 2.2.
kryptofix K22
Kryptofix-2,2

Molecular Formula: C₁₄H₃₀N₂O₅

Chemical Name
1,4,7,13,16-pentaoxa-10,19-diaza-cycloheneicosane
1,7,10,13,19-pentaoxa-4,16-diazacycloheneicosane
1,7,10,16,19-Pentaoxa-4,13-diazacycloheneicosane
21-crown-OOONOON
kryptofix 23
[21]ane-OOONOON

Molecular Formula: C₁₆H₃₄N₂O₆

Chemical Name
1,13-diaza-24-crown-8
1,4,7,13,16,19-hexaoxa-10,22-diaza-cyclotetracosane
1,4,7,13,16,19-hexaoxa-10,22-diazacyclotetracosane
1,7,10,13,19,22-hexaoxa-4,16-diazacyclotetracosane
26-hydroxy-4,7,10,16,19,22-hexaoxa-1,13-diazabicyclo<11.11.3>heptacosane
4,16-diaza-24-crown-8
[24]ane-OOONOOON

Molecular Formula: C₁₅H₃₀N₂O₅

Molecular Formula: C₁₇H₃₄N₂O₆

Molecular Formula: C₁₉H₃₈N₂O₇