Technical Grade Urotropin 99% from Japan
99% pure technical grade urotropin for rubber vulcanization accelerator systems. HTS 2933.69.5000 classification due to specific chemical identity as hexamethylenetetramine with triazine ring.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Ash content <0.05% and iron <5ppm critical for rubber applications; test certificates required
• Avoid dust formation during handling; specify anti-dusting agent if added
• Confirm no melamine contamination (>20ppm) via HPLC analysis