Manufacturer & Exporter of 18-Crown-6. Our product range also comprises of Dibenzo-18-crown-6 and 15-Crown-5. 18-Crown-6 REQUEST CALLBACK 18-Crown-6 Click to Zoom Ask for Price CAS NO: 17455-13-9 SYNONYMS: 1,4,7,10,13,16-Hexaoxacyclooctadecane; 18-Crown-6-ether. Mol. Formula: C12H24O6 Mol. Wt.: