diazenyl]-6-sulfonato-1-naphthyl}diazenyl]- 1-naphthyl}diazenyl]- 1,5- naphthalenedisulfonate) (CAS No. 4399–55–7) (provided for in subheading 3204.14.50) Free No change No change On or before 12/31/2020 . 727. Direct blue 279 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.08.36 Direct Blue 279 (4-N-(5,8-dimethoxy-2,4-dimethylquinolin-6-yl)-1-N,1-N-diethylpentane-1,4-diamine) (CAS No. 72827–89–5) (provided for in subheading 3204.14.50) Free No change No change On or before 12/31/2020 . 728. Direct violet 51 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.08.37 Disodium 7-anilino-3-[(E)-{4-[(E)-(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-2-methoxy-5-methylphenyl}diazenyl]-4-hydroxy-2-naphthalenesulfonate (direct violet 51) (CAS No. 5489–77–0) (provided for in subheading 3204.14.50) Free No change No change On or before 12/31/2020 . 729. Direct violet 9 crude Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.08.38 Disodium 7-anilino-4-hydroxy-3-({2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)-2-naphthalenesulfonate (Direct violet 9) (CAS No. 6227–14–1) (provided for in subheading 3204.14.50) Free No change No change On or before 12/31/2020 . 730. Indigo, vat blue 1 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.08.39 Vat blue 1 (synthetic indigo) (2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one) (CAS No. 482–89–3) (provided for in subheading 3204.15.10) Free No change No change On or before 12/31/2020 . 731. Pigment orange 43/vat orange 7 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.08.40 Pigment Orange 43/Vat Orange 7 (bisbenzimidazo [2,1- b:2',1'-i]benzo[lmn] [3,8]phenanthroline- 8, 17-dione) (CAS No. 4424–06–0) (provided for in subheading 3204.15.20) Free No change No change On or