Industrial Grade Tetramethylguanidine from Japan
Tetramethylguanidine in industrial grade (95-98% purity) for use as catalyst in polymerization reactions, under HTS 2925.29.70.00. Qualifies as chemically defined organic imine per Chapter 29 scope, with minor impurities allowed. Key in polyurethane production.
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
• Label with exact impurity profile to comply with 'whether or not containing impurities' provision
• Ship in UN-approved drums; declare as corrosive liquid UN3267
• Confirm no anti-dusting agents rendering it specific-use per note (g)