To extend temporary duty-free treatment of certain chemicals.

Amends the Harmonized Tariff Schedule of the United States to grant duty-free treatment, through December 31, 1994, of: (1) acetoacet-para-phenetidide (AAPP); (2) acetoacet-para-toluidide (AAPT); (3) acetoacetsulfanilic acid, potassium salt (AA Sulfanilic Acid Potassium Salt); (4) 6-methyl uracil; (5) ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate (ATHAET); (6) ethyl 2-(2-aminothiazole-4-yl)-2-methoxyiminoacetate (ATMAET); (7) 4,4'-methylene-bis-(2,6-dimethylphenyl-cyanate); (8) 2,2'-bis (4-cyanatophenyl)-1,1,1,3,3,3-hexafluoropropane; (9) 4,4'-thiodiphenyl cyanate; (10) 1,1-ethylidene-bis-(phenyl-4-cyanate); (11) hydrocarbon novolac cyanate ester; (12) 4,4'-methylene-bis-(3-chloro-2, 6-diethyl aniline); (13) 4,4'-methylene-bis-(2,6-diisoprophyl aniline); and (14) L-carnitine.