Citramalic Acid from Germany
Citramalic acid (2-hydroxy-2-methylbutanedioic acid) qualifies under 2918.19.90.00 with its alpha-hydroxy functionality. Used in metabolic pathway research.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.04.6211%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide NMR/GC-MS spectra confirming structure and purity
• Document academic vs commercial research applications
• Check salt vs free acid form declarations