3-Chloroperoxybenzoic Acid Analytical Standard from Mexico
High-purity analytical standard of m-chloroperoxybenzoic acid used for calibration in chromatography and spectroscopic analysis. Falls under HTS 2916.39.04.00 as a separate chemically defined aromatic peroxyacid meeting chapter note (a).
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include NIST traceability certificate for analytical standards to expedite customs
• Small package exemption may apply for <100g shipments but verify hazmat limits
• Segregate from reducing agents in warehouse to prevent accidental reaction