Diethylenetriamine (DETA) from China
Diethylenetriamine is an acyclic polyamine with the formula H2NCH2CH2NHCH2CH2NH2, classified under HTS 2921.29.0030 as a chemically defined acyclic polyamine. It serves as a key building block in chemical synthesis for epoxy curing agents and chelating agents.
Duty Rate — China → United States
125%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide certificate of analysis confirming purity >98% to verify classification as chemically defined compound under Chapter 29
• Ensure proper hazardous material declaration (UN2051, Corrosive) for DOT/IMDG compliance during import
• Avoid misclassification as mixtures; single-compound DETA must not exceed 1% impurities per chapter notes