3,3-Dimethylglutaric Acid from China
3,3-Dimethylglutaric acid, a geminally substituted dicarboxylic acid for pharmaceutical synthesis. Classified under HTS 2917.19.70.50 as acyclic polycarboxylic acid 'other'. Specific substitution pattern but remains acyclic per definition.
Duty Rate — China → United States
16.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide synthetic route disclosure for pharma customers
• Chiral center requires optical rotation specification
• Stability data essential due to beta-branching