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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