; and more than 50 percent by weight of a hydrocarbon-based solvent (provided for in subheading 3208.10.00) Free No change No change On or before 12/31/2020 . 941. CE-1618BL Methyl palmitate/oleate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.53 Mixtures of methyl esters of C 16 -C 18 and C 18 unsaturated fatty acids (CAS No. 67762–38–3) and methyl hexadecanoate (Methyl Palmitate) (CAS No. 112–39–0) (provided for in subheading 3824.99.41) derived from coconut, palm-kernel or palm oil, used other than as a fuel Free No change No change On or before 12/31/2020 . 942. N-Propylthophosphoryl triamide (NPPT) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.54 N-Propylphosphorothioic triamide (CAS No. 916809–14–8) (provided for in subheading 3824.99.92) Free No change No change On or before 12/31/2020 . 943. Iminodisuccinate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.55 Mixtures of sodium salts of iminodisuccinic acid (CAS No. 144538–83–0), whether or not in water (provided for in subheading 3824.99.92) Free No change No change On or before 12/31/2020 . 944. Bleaching additive Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.56 Mixtures of N,N′-1,2-ethanediylbis(N-acetylacetamide) with organic binders (CAS No. 10543–57–4) (provided for in subheading 3824.99.92) Free No change No change On or before 12/31/2020 . 945. Mixtures of C5-C18 perfluorocarbon alkanes, perfluorocarbon amines, and perfluorocarbon ethers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.10.57 Mixtures of C 5 -C 18 perfluorocarbon alkanes, perfluorocarbon amines, and/or perfluorocarbon ethers (CAS No. 86508–42–1) (provided for in subheading 3824.99.92) Free No change No change On or before 12/31/2020 . 946. Certain specialty monomers Subchapter II