U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced
Primary HTS Code
2918.30.9000
$3.6M monthly imports
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Ruling Age
23 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-04-30 · Updates monthly
The tariff classification of Mucochloric acid, CAS 87-56-9 from Italy
NY J81381 March 11, 2003 CLA-2-29:RR:NC:2:240 J81381 CATEGORY: Classification TARIFF NO.: 2918.30.9000 Mr. Joseph J. Chivini Austin Chemical Company, Inc. 1565 Barclay Boulevard Buffalo Grove, Illinois 60089 RE: The tariff classification of Mucochloric acid, CAS 87-56-9 from Italy Dear Mr. Chivini: In your letter dated February 10, 2003 you requested a tariff classification ruling. Mucochloric acid, CAS 87-56-9, also known as 2,3-Dichloro-4-oxo-2-butenoic acid, is a bulk pharmaceutical intermediate. The applicable subheading for Mucochloric acid will be 2918.30.9000, Harmonized Tariff Schedule of the United States (HTS), which provides for Carboxylic acids with aldehyde or ketone functions but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: Other. The rate of duty will be 3.7 percent ad valorem. This ruling is being issued under the provisions of Part 177 of the Customs Regulations (19 C.F.R. 177). A copy of the ruling or the control number indicated above should be provided with the entry documents filed at the time this merchandise is imported. If you have any questions regarding the ruling, contact National Import Specialist Stephanie Joseph at 646-733-3268. Sincerely, Robert B. Swierupski Director, National Commodity Specialist Division