Methylene Blue Trihydrate Powder
Methylene Blue is a basic thiazine dye used in medical diagnostics, aquariums, and textiles. It qualifies for HTS 3204.13.60.00 as a product listed in additional U.S. note 3 to section VI for synthetic organic basic dyes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If acid dye equivalent
Acid versions of thiazine dyes classify under acid dye subheadings based on ionic character.
If for pharmaceutical grade preparations
Medicinal dye formulations may enter under Chapter 30 as human blood or vaccine antisera.
If used as luminophore
Fluorescent brightening agents or luminophores have dedicated heading 3206.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide USP or pharmaceutical grade certificates for medical uses to expedite FDA clearance
• Declare exact hydrate form and water content to prevent reclassification as anhydrous variant
• Watch for REACH compliance if transshipping from EU; mismatched docs lead to delays
Related Products under HTS 3204.13.60.00
Basic Blue 9 Dye Powder
Basic Blue 9, also known as Astrazone Blue, is a synthetic organic basic dye used for coloring paper, inks, and textiles. It falls under HTS 3204.13.60.00 as a basic dye described in additional U.S. note 3 to section VI, which specifies certain listed synthetic organic coloring matters.
Basic Red 18 Dye Crystals
Basic Red 18, known as Rhodamine B, is a fluorescent basic dye used in cosmetics, inks, and biological staining. Classified under HTS 3204.13.60.00 per additional U.S. note 3, as a specified synthetic organic basic dye.
Basic Yellow 2 Dye Paste
Basic Yellow 2, or Auramine O, is a fluorescent basic dye for paper coating and cellulosic fibers. Classified in HTS 3204.13.60.00 per additional U.S. note 3 listing for synthetic basic coloring matter.
Rhodamine 6G Basic Dye Powder
Rhodamine 6G is a xanthene basic dye prized for laser dyes and fluorescent tracers. It matches HTS 3204.13.60.00 criteria as a basic dye in U.S. note 3 to section VI.
Basic Green 4 Dye Solution
Basic Green 4, or Malachite Green oxalate, is used for silk dyeing and fish disease treatment. Covered by HTS 3204.13.60.00 as per U.S. note 3 for specified basic dyes.
Victoria Blue B Dye Base
Victoria Blue B is a triarylmethane basic dye for cotton and paper applications. It qualifies under HTS 3204.13.60.00 as listed in additional U.S. note 3.