Customs tariff code 2934999019

(4R,6S)-6-Methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol (CAS RN 147128-77-6) with a purity by weight of 94 % or more

Tariff classification hierarchy

  1. 29 ORGANIC CHEMICALS
  2. 2934 Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds
  3. 293491 Other
  4. 293499 Other
  5. 29349990 Other
  6. 2934999019 (4R,6S)-6-Methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol (CAS RN 147128-77-6) with a purity by weight of 94 % or more

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The catalogue provides classification information from a dated data snapshot. The applicable duty rate depends on origin and import date. Anti-dumping and countervailing duties, safeguards and other conditions may apply. It does not establish a universal or guaranteed duty rate.