Industrial Grade Tetramethylguanidine
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If esterified derivative
Esters classified with acid-function compound last in numerical order per note on esters.
If put up as pesticide intermediate
Specific-use formulations move to Chapter 38 goods.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• 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)
Related Products under HTS 2925.29.70.00
Tetramethylguanidine (TMG)
Tetramethylguanidine is a strong organic base classified under HTS 2925.29.70.00 as an imine-function compound and derivative. It features a guanidine structure with four methyl groups, making it a chemically defined compound fitting Chapter 29 note (a). Primarily used as a catalyst in chemical synthesis.
99% Pure Tetramethylguanidine
High-purity tetramethylguanidine (99%) used in pharmaceutical intermediate synthesis, classified under HTS 2925.29.70.00 as a separate chemically defined imine derivative. Meets Chapter 29 requirements for organic compounds without excluded additives. Common in organic catalysis applications.
Tetramethylguanidine with Stabilizer
Stabilized tetramethylguanidine containing BHT preservative for transport, classified HTS 2925.29.70.00 per Chapter 29 note (f). Remains chemically defined imine compound. Used in fine chemical manufacturing.
Pharma-Grade Tetramethylguanidine Base
Pharmaceutical-grade tetramethylguanidine meeting USP standards, under HTS 2925.29.70.00 as imine derivative. Chemically defined for drug synthesis intermediates. Excludes immunological products per chapter note.