; 2-[2-[2-[2-[2-(2-methoxyethoxy) ethoxy]ethoxy]ethoxy]ethoxy] ethanol (CAS No. 130955–39–4) (provided for in subheading 2909.19.18) Free No change No change On or before 12/31/2024 . 4157. Monoethylene glycol dimethyl ether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.57 1,2-Dimethoxyethane (CAS No. 110–71–4) (provided for in subheading 2909.19.60) Free No change No change On or before 12/31/2024 . 4158. Diethylene glycol dimethyl ether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.58 1-Methoxy-2-(2-methoxyethoxy)ethane (CAS No. 111–96–6) (provided for in subheading 2909.19.60) Free No change No change On or before 12/31/2024 . 4159. Diethylene glycol dibutyl ether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.59 1-[2-(2-Butoxyethoxy)ethoxy]butane (CAS No. 112–73–2) (provided for in subheading 2909.19.60) Free No change No change On or before 12/31/2024 . 4160. Tetraethylene glycol dimethyl ether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.60 1-Methoxy-2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethane (CAS No. 143–24–8) (provided for in subheading 2909.19.60) Free No change No change On or before 12/31/2024 . 4161. Glycol diether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.61 1-Methoxy-3-(3-methoxypropoxy)propane (CAS No. 111109–77–4) (provided for in subheading 2909.49.60) Free No change No change On or before 12/31/2024 . 4162. Diglycidyl resorcinol ether Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.19.64 2-[[3-(Oxiran-2-ylmethoxy)phenoxy]methyl]oxirane (diglycidyl resorcinol ether) (CAS No. 101–90–6) (provided for in subheading 2910.90.20) Free No change No change On or before 12/31/2024 . 4163. Allyl glycidyl ether Subchapter II of