2933.99.24.00/4-(N-Ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine Sesquisulfate Monohydrate/Japan
4-(N-Ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine Sesquisulfate Monohydrate from Japan
Known as CD-3, this is the primary color developer for modern C-41 color negative processing. The sesquisulfate salt form provides optimal pH stability for high-volume photo labs. As an aromatic heterocyclic photographic chemical, it falls under HTS 2933.99.24.00.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify exact hydrate and salt stoichiometry; provide pH stability data; comply with sesquisulfate import specifications for consistent classification