2934.99.70.00/2-Methyl-2,5-Dioxo-1-Oxa-2-Phospholane/Canada

2-Methyl-2,5-Dioxo-1-Oxa-2-Phospholane from Canada

2-Methyl-2,5-dioxo-1-oxa-2-phospholane is a cyclic phosphate ester explicitly named in HTS 2934.99.70.00, classified among other heterocyclic compounds. This organophosphorus compound with five-membered ring containing oxygen and phosphorus is used in polymer synthesis and as a phosphorylating agent.

Duty Rate — Canada → United States

0%

Rate breakdown

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

• Include NMR and GC-MS spectra in documentation to confirm cyclic phospholane structure distinguishing from acyclic phosphates

• Classify as UN 3265 (corrosive liquid, acidic) and ensure proper inner packaging for air/sea transport

• Watch for TSCA inventory listing; pre-registration required for first import into US