Isobutyric Acid from China
Isobutyric acid (2-methylpropanoic acid) is a saturated acyclic monocarboxylic acid used in organic synthesis, flavor production, and as an intermediate for pharmaceuticals. It falls under HTS 2915.90.50.50 as 'other' saturated acyclic monocarboxylic acids that are not specifically named elsewhere in heading 2915. This classification applies to its chemical structure as a branched chain C4 acid.
Duty Rate — China → United States
28.8%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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 detailed chemical analysis (GC-MS, NMR) confirming purity and structure to verify classification under 2915
• Include Safety Data Sheets (SDS) and ensure proper UN packaging for corrosive acids during transport
• Avoid misclassification as aromatic acids (2904) by documenting saturated aliphatic nature