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N344340 · 2025-03-13 — The tariff classification of Color Developing Agent 3 (CAS No. 25646-71-3) and Color Developing Agent 4 (CAS No. 25646-77-9) from China imported in bulk form
We referred the information provided to our laboratory for analysis. We regret the delay. Color Developing Agent 3 is also known as N-{2-(4-amino-N-ethyl-3-methylamino)ethyl}methane sulfonamide: sulfuric acid. You indicate that it is a coloring agent principally used for photographic purposes. Our laboratory review indicates that this product is a separate chemically defined organic compound containing sulfonamide, amine and aromatic functional groups. Color Developing Agent 4 is also known as 2-(4-amino-N-ethyl-3-methylamino) ethanol: sulfuric acid. You indicate that it is a coloring agent…
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