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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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)