Methylene Blue Powder USP Grade from China
High-purity 3,7-Bis(dimethylamino) phenazathionium chloride (Methylene blue) powder meeting USP standards for pharmaceutical applications. Classified under HTS 3204.13.45.00 as a specific basic dye, chemically defined synthetic organic coloring matter. Used primarily as a medication and diagnostic stain rather than a textile colorant.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide Safety Data Sheet (SDS) and Certificate of Analysis confirming 98%+ purity and USP compliance
• Declare exact chemical identity and CAS number (61-73-4) to avoid misclassification as general preparations
• Ensure proper hazardous material labeling if shipped in powder form exceeding certain concentrations