Brassylic Acid from China
Brassylic acid (tridecanedioic acid), C13 dicarboxylic acid for specialty polyamides. HTS 2917.19.70.50 as acyclic polycarboxylic acid without specific provision. High molecular weight straight chain meeting chemical 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
• Acid value specification critical (typically 380-400 mg KOH/g)
• Distinguish from ozonic acids (oxidative cleavage products)
• Low volume shipments often trigger FDA cosmetic scrutiny