HTS code 9817.29.01 covers "Cyclic organic chemical products in any physical form having an aromatic or modified aromatic structure, however provided for in chapter 29 (but excluding 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt), to be used in the manufacture of photographic color couplers; photographic color couplers (but excluding 2,3-dihydroxynaphthalene-6-sulfonic acid, sodium salt) (all the foregoing goods however provided for in chapter 29 or in subheading 3707.90.31, 3707.90.32 or 3707.90.60)" 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.