Isoergosine from Germany
Isoergosine is an isomer of ergosine from rye ergot, used in stereochemistry studies. HTS 2939.69.00.00 covers this as a rye ergot derivative; chapter note (b) includes isomers of organic compounds. Chemically defined and separate from mixtures.
Duty Rate — Germany → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Chiral analysis certificate essential for isomer verification
• Chapter note (b) allows isomer mixtures if same compound base
• Retail sale packing triggers Chapter 33/38 preparations