Benzidine Dihydrochloride from Mexico
Benzidine dihydrochloride serves as an intermediate for azo dyes and detection reagents despite carcinogen status. Falls under HTS 2921.49.50.00 as aromatic diamine salt. Chapter note 4(C)(1) directs salt classification with parent amine.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• EPA carcinogen import permit required; special handling manifests; limited to research quantities only