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1,2,5,8-Tetrahydroxyanthraquinone (Quinizarin) from Canada

Quinizarin contains four hydroxy groups on the anthraquinone core, classified as quinone with other oxygen functions under HTS 2914.61.00.00. Important for disperse dye manufacturing.

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

Melting point (194-197°C) specification confirms identity from commercial sources

Sublimation purification common; declare post-purification purity level

Technical vs. analytical grades affect documentation requirements