; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (8) o- C hlorotoluene Heading 9902.01.95 is amended— (A) by amending the article description to read as follows: 2-Chlorotoluene (CAS No. 95–49–8) (provided for in subheading 2903.99.80) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (9) Leucoquinizarin Heading 9902.02.25 is amended— (A) by amending the article description to read as follows: Leucoquinizarin as 1,4,9,10-tetrahydroxyanthracene (CAS No. 476–60–8), 2,3-dihydro-9,10-dihydroxyanthracene-1,4-dione (CAS No. 17648–03–2) or 2,3-dihydro-1,4-dihydroxy-9,10-anthracenedione (CAS No. 40498–13–3) (provided for in subheading 2907.29.90 or 2914.69.90) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (10) Anisaldehyde Heading 9902.02.49 is amended— (A) by amending the article description to read as follows: p-Anisaldehyde (4-methoxybenzaldehyde) (CAS No. 123–11–5) (provided for in subheading 2912.49.10) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (11) Methylionone Heading 9902.02.56 is amended— (A) by amending the article description to read as follows: (E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one (Methylionone) (CAS No. 1335–46–2) (provided for in subheading 2914.23.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (12) Itaconic acid Heading 9902.02.95 is amended— (A) by amending the article description to read as follows: Itaconic acid (2-methylidenebutanedioic acid) (CAS No. 97–65–4) (provided for in subheading 2917.19.70) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (13) 4-Sulfo-1,8-naphthalic anhydride potassium salt Heading 9902.02.97 is amended— (A) by amending the article description to read as follows: Potassium 1,3-dioxo-1H,3H-benzo[de]isochromene-6-sulfonate (CAS No. 71501–16–1) (provided for in subheading 2917.39.04)