2925.29.70.00/99% Pure Tetramethylguanidine/Japan

99% Pure Tetramethylguanidine from Japan

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.

Duty Rate — Japan → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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Import Tips

• Provide GC-MS analysis confirming ≥99% purity to distinguish from 'other' imines

• Ensure stabilizer (if present) qualifies under note (f) for preservation only

• Avoid retail packaging over 1kg to prevent Chapter 38 reclassification

99% Pure Tetramethylguanidine from Japan — Import Duty Rate | HTS 2925.29.70.00