2931.90.90.52/Allylchlorosilane Intermediate/Canada

Allylchlorosilane Intermediate from Canada

Allylchlorosilane (chlorodimethylallylsilane) is an organosilicon compound used in silicone polymer synthesis. Falls under 2931.90.90.52 as an organo-inorganic compound with silicon-halogen-carbon structure, excluded from organo-sulfur classification.

Duty Rate — Canada → United States

100%

Rate breakdown

9903.04.6096.3%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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Import Tips

• Hydrolyzes on moisture contact; ship with desiccant and inert atmosphere packaging

• REACH registration required for EU re-export; provide polymerization end-use statement

• Distinguish from siloxanes (heading 2931.90.30) via chlorine content declaration