Pub. L. 101-382, tit. III, subtit. A, pt. 1, sec. 325
1.4-DIHYDROXYANTHRAQUINONE.
SEC. 325. 1.4-DIHYDROXYANTHRAQUINONE. Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: “ 9902.30.18 1,4-Dihydroxyanthraquinone (CAS No. 81–64–1) (provided for in subheading 2914.69.50) Free No change No change On or before 12/81/92 ”