O-n-Propyl Ethylphosphonofluoridate

A specific phosphonofluoridate with n-propyl (C3) O-alkyl and ethyl alkyl groups, directly matching HTS 2931.59.0010's description for halogenated organo-phosphorous derivatives. It qualifies as a separate chemically defined compound under Chapter 29, excluding mixtures or non-pure forms.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+10.0%13.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2931.90.60.00Higher: 41.5% vs 13.7%

If cycloalkyl group exceeds C10 limit

Other organo-inorganic phosphorous compounds without specified short-chain alkyls classify differently.

2919.90Same rate: 13.7%

If classified by phosphonic acid parent without fluorine

Phosphonic/phosphinic acids lacking halogen fall under earlier oxygen-function carboxylic acid heading.

9802.00.80Lower: 10% vs 13.7%

If US goods returned after chemical processing abroad

Articles assembled abroad from US components or processed goods enter duty-free under Chapter 98.

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Import Tips & Compliance

Validate alkyl chain (n-propyl ≤C10) with NMR spectra in entry docs; anticipate BIS export control checks

Avoid pitfall of bulk packaging mistaken for industrial mixtures

Secure advance CBP ruling for derivative confirmation