1-(2,4-Diamino-5-methylphenylazo)-2-naphthol-7-sulfonic Acid from Germany
A complex azo coupler used in photographic color development for magenta dye formation, featuring aromatic heterocyclic components. This compound participates in chromogenic reactions specific to silver halide photography. Its photographic chemical role justifies HTS 2933.99.24.00 classification.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Complex structure requires detailed NMR/structural analysis; declare as sulfonated azo compound; ensure wastewater permits for sulfonic acid disposal