2931.59.00/Bis(2-chloroethyl) Phosphonate/Japan

Bis(2-chloroethyl) Phosphonate from Japan

A difunctional chlorophosphonate used in flame retardant polymer synthesis and as a cross-linking agent. Falls under HTS 2931.59.00 as a halogenated organo-phosphorus compound per chapter definitions.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Confirm P-C vs P-O-C bonding via spectroscopic methods

• Store under inert atmosphere to prevent HCl evolution

• Classify distillation fractions separately if purity varies