HTS code 2924.29.23.00 covers "Carboxyamide-function compounds; amide-function compounds of carbonic acid › Other › 4-Amino acetanilide; 2,2'-Oxamido bis [ethyl-3-(3,5-di-tert-butyl- 4-hydroxyphenyl) propionate]; Aceto acetsulfanilic acid, potassium salt; and N-(2,3-Dihydroxy propyl)-5-N-(2,3-dihydroxy- propyl) acetamido-N'-(2-hydroxyethyl)- 2,4,6-triiodoisophthalamide" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.