D-Erythronolactone from Germany
D-Erythronolactone is a four-carbon sugar lactone with five-membered oxygen ring, under HTS 2932.20.50.50. Used in carbohydrate chemistry and as chiral building block.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Optical rotation specification confirms D-isomer vs L-isomer classification
• Research chemical exemption may apply; include institutional end-user certificates
• HPLC purity certificate prevents mixture classification issues