4-Amino-6-chloro-m-benzenedisulfonamide Technical Grade from Japan
Technical grade 4-Amino-6-chloro-m-benzenedisulfonamide (95-98% purity) qualifies under HTS 2935.90.06.00 as the named sulfonamide compound per Chapter 29 scope for compounds 'whether or not containing impurities'. Used in synthesis of diuretics and bactericides.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Purity certificate (HPLC) showing >95% named compound essential; lower purity risks reclassification as 3824 mixture
• Declare as 'chemical intermediate' not 'active pharmaceutical ingredient' to avoid Chapter 30 scrutiny
• Hazardous material shipping papers required (UN number if applicable); DOT classification impacts transport costs