O-n-Propyl N-Ethyl-N-Methyl Phosphoramidocyanidate from China
This mixed dialkyl variant with O-n-propyl (C3 straight chain) and N-ethyl-N-methyl groups precisely fits HTS 2931.49.00.05 for specified phosphoramidocyanidates. Its chemically pure form qualifies under Chapter 29 for separate organic compounds.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.6096.3%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
• Use precise IUPAC naming in commercial invoices to match statistical suffix .05 requirements
• Test for impurities; >1% contaminants may shift to 2931.90 other category
• Monitor REACH-like compliance for EU origin chemicals entering US commerce