Medical-Grade Sulfur Hexafluoride for Ultrasound Contrast from Japan
Pharmaceutical-grade SF6 encapsulated in phospholipid microbubbles (SonoVue equivalent) for echocardiogram contrast enhancement. Chemically defined SF6 core under HTS 2812.90.0010; formulation noted.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• FDA drug master file and IND required; chemical classified separately from finished pharmaceutical
• Maintain cold chain documentation for microbubble stability
• Avoid 3004 classification by declaring as bulk chemical, not patient-ready dosage