1-chloroethyl ethyl carbonate (CEEC) Chemical name: 1-chloroethyl ethyl carbonate Molecular formula: C5H9O3Cl Molecular weight: 152.58 CAS NO.: 50893-36-2 Appearance: colorless clear liquid Assay: not less than 99% Usage: candesartan cilexetil and cefotiam hexetil intermediates 166-200kg/drum