2931.59.00.15/n-Propylphosphonyl Difluoride/China

n-Propylphosphonyl Difluoride from China

n-Propylphosphonyl difluoride (CH3CH2CH2P(O)F2) features a straight-chain propyl group on the P(O)F2 structure. Falls squarely under HTS 2931.59.00.15 as the n-propyl variant of alkyl phosphonyl difluorides in the halogenated organo-phosphorus category. Employed in flame retardant precursor synthesis.

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

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Import Tips

• Label with GHS corrosive/toxic pictograms; missing labeling causes FDA/CBP rejection at entry

• File EEI with exact quantity <100g exemption limits for CWC chemicals to avoid license

• Test for isomer purity—n-propyl vs iso contamination affects statistical reporting suffix