We are offering acetyl chloride extra pure. Ch3coci m.w. 78.50 assay 98-102% wt. Per ml at 20oc about 1.10g maximum limits of impurities : non-volatile matter 0.05% phosphorus compounds(p) 0.005% sulphate(so4) 0.01% cas no : 75-36-5 un no. : 3.21717 tariff : 2915 90 10 r : 11 - 14 - 34 s : 9 - 16 - 26 - 45 f :