No. 108–45–2) (provided for in subheading 2921.51.10) 4.6% No change No change On or before 12/31/2020 . 278. 4-ADPA (4-aminodiphenylamine) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.82 N-Phenyl-p-phenylenediamine (CAS No. 101–54–2) (provided for in subheading 2921.51.50) 5.1% No change No change On or before 12/31/2020 . 279. 4,4 Methylene bis o-chloro aniline Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.83 4,4' Methylenebis(2-chloroaniline) (CAS No. 101–14–4) (provided for in subheading 2921.59.08) Free No change No change On or before 12/31/2020 . 280. 4,4'-Diaminostilbene-2,2'-disulfonic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.84 4,4'-Diamino-2,2'-stilbenedisulfonic acid (CAS No. 81–11–8) (provided for in subheading 2921.59.20) 2.8% No change No change On or before 12/31/2020 . 281. TFMB Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.85 2,2'-Bis(trifluoromethyl)-4,4'-biphenyldiamine (CAS No. 341–58–2) (provided for in subheading 2921.59.40) Free No change No change On or before 12/31/2020 . 282. Phenol, 2,2'-[[(1S...]bis[6-(1,1-dimethyylethyl) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.86 2,2'-[[(1S,2S)-1,2-Diphenyl-1,2-ethanediyl]bis(iminomethylene)]bis[6-(1,1-dimethylethylphenol] (CAS No. 481725–63–7) (provided for in subheading 2921.59.40) Free No change No change On or before 12/31/2020 . 283. Prodiamine Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.03.87 2,6-Dinitro-N,N-dipropyl-4-(trifluoromethyl)-1,3-benzenediamine (Prodiamine) (CAS No. 29091–21–2) (provided for in subheading 2921.59.80) 2.9% No change No change On or before 12/31/2020 . 284. 3,3' Dichlorobenzidine dihydrochloride Subchapter II of chapter 99 is