2921.59.80.90/Diaminofluorescein/Japan

Diaminofluorescein from Japan

Diaminofluorescein serves as a fluorescent probe and dye intermediate with dual amine groups on aromatic system. Falls under HTS 2921.59.80.90 as aromatic polyamine derivative despite fluorescent properties. Chapter 29 note (g) excludes only retail coloring matter.

Duty Rate — Japan → United States

6.5%

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

• Specify bulk vs analytical grade to determine chapter classification

• Fluorescence quantum yield data supports chemical intermediate identity

• Avoid retail laboratory reagent packaging that triggers Chapter 32 exclusion

Diaminofluorescein from Japan — Import Duty Rate | HTS 2921.59.80.90