n-Propylphosphonic dichloride from China
n-Propylphosphonic dichloride (CH3CH2CH2P(O)Cl2) contains a straight-chain propyl group attached to phosphorus with two chlorine atoms, qualifying under the specific HTS 2931.59.00.60 subcategory. This reagent is essential for producing phosphonate-based water treatment chemicals.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Validate NMR spectra documentation proving n-propyl (not iso-propyl) configuration for customs verification
• Comply with REACH-like TSCA inventory requirements for new chemical substances
• Avoid glass containers; use PFA or PTFE-lined steel drums certified for corrosive phosphorus halides