Ribonolactone from Mexico
Ribonolactone, a five-membered furanose lactone from ribose, contains oxygen heteroatom only and is classified under HTS 2932.20.50. Used in nucleotide synthesis.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Anhydrous grade requires <0.1% water content certification
• Nucleic acid synthesis purity standards exceed general chemical specs
• Cold chain (-20°C) mandatory for activity preservation