... % 3.M.F.:C12H24O6 4.Package: 25kg/drum Product name:18-Crown 6-EtherMolecular Formula C12H24O6 Molecular Weight 264.32 CAS ... Registry Number 17455-13-9 EINECS 241-473-5 Name 18-Crown-6Synonyms 1,4,7,10,13,16-Hexaoxacyclooctadecane; Hexaoxacyclo ... -octadecane; 18-Crown 6-ether Molecular Structure Molecular Formula C12H24O6Molecular Weight 264 ...