29183070

HS code 2918.30.70.00 (Chapter 29 "Organic chemicals"; Heading 2918 "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives"; Subheading 291830 "- Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives") under the United States tariff schedule classifies "Dimethyl acetyl succinate; Oxalacetic acid diethyl ester, sodium salt; 4,4,4-Trifluoro-3-oxobutanoic acid, ethyl ester; and 4,4,4-Trifluoro-3-oxobutanoic acid, methyl ester". United States customs apply MFN rate of Free, Column 2 rate 25%. Statutory unit of measure: kg. 18 free trade agreement preferential rates are available for this code.