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Dimethyl Benzylidene Sorbitol (DMDBS) from Canada

Dimethyl benzylidene sorbitol, chemically Bis-O-[(4-methylphenyl)methylene]-D-glucitol, is an aromatic heterocyclic compound with oxygen hetero-atoms used as a nucleating agent in polypropylene plastics. It falls under HTS 2932.99.55.00 as a specifically named aromatic heterocyclic compound with oxygen hetero-atoms only. This white crystalline powder enhances clarity and crystallization rate in thermoplastics.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Provide chemical analysis certificates confirming identity as Bis-O-[(4-methylphenyl)methylene]-D-glucitol to avoid misclassification

Ensure packaging meets UN standards for organic chemicals (potential 9 UN number) with proper hazard labeling

Declare purity levels (>98% typical) as impurities may affect classification eligibility under Chapter 29 note (a)