Sodium 4-Methylbenzenesulfinate from China
This aromatic sulfinic acid salt serves as a photographic chemical in fixing baths and bleach regeneration processes. It functions as a sulfinate source in silver halide processing chemistry. Falls under HTS 2934.99.20.00 as an aromatic heterocyclic photographic chemical.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit assay certificates confirming minimum purity levels for photographic grade
• Declare exact CAS number (824-79-3) and intended photographic application
• Monitor for anti-dumping duties on Chinese-origin sulfinates