Progesterone USP Reference Standard from China
High-purity progesterone reference standard used primarily as a hormone in pharmaceutical quality control. Falls under HTS 2937.90.90.00 as a natural hormone reproduced by synthesis, used primarily as a hormone. Essential for analytical and calibration purposes.
Duty Rate — China → United States
0%
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
Import Tips
• Provide USP certificate and intended use documentation for reference standard exemption considerations
• Ensure proper temperature-controlled shipping to maintain hormone stability
• Document as bulk chemical, not finished drug, to maintain Chapter 29 classification