Pentachlorobenzene Lab Reference Standard from Mexico
Certified reference material of pentachlorobenzene for analytical calibration in environmental testing labs. Classified in HTS 2903.93.00.00 as the pure compound, not as a preparation despite small packaging.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include NIST-traceable certificate of analysis; declare as 'analytical standard, not for synthesis'
• Small quantities (<1kg) still Chapter 29 if chemically defined per note (a); avoid 'kit' descriptions