N,N-Dimethylphosphoramidic dichloride from China

This is a chemically defined organic compound featuring a nitrogen function through the phosphoramidic group with N,N-dimethyl substitution and two chloride atoms, precisely matching the HTS 2929.90.50.18 classification for N,N-dialkyl phosphoramidic dihalides. It serves as a key intermediate in organophosphorus synthesis for pesticides and pharmaceuticals. The dihalide structure distinguishes it from other nitrogen-function compounds in Chapter 29.

Duty Rate — China → United States

31.5%

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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Classify strictly under Chapter 29 note (a) as a separate chemically defined compound; provide detailed chemical analysis certificates to avoid misclassification as mixtures

Comply with TSCA pre-manufacture notification and EPA hazard communication standards; include Safety Data Sheets (SDS) in import documentation

Avoid common pitfalls like insufficient stabilization declarations—ensure any added stabilizers are noted per Chapter 29 note (f) for transport safety

N,N-Dimethylphosphoramidic dichloride from China — Import Duty Rate | HTS 2929.90.50.18