U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced
Primary HTS Code
2918.19.9000
$7.5M monthly imports
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Ruling Age
35 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-04-30 · Updates monthly
The tariff classification of 4-bromo-3-hydroxybutyric acidethyl ester (CAS # 32224-01-4) from Japan.
NY 854761 Aug 9 1990 CLA-2-29:S:N:N1:235 854761 CATEGORY: Classification TARIFF NO.: 2918.19.9000 Mr. Edmund J. Corboy Austin Chemical Company, Inc. 9655 West Bryn Mawr Avenue Rosemont, Illinois 60018-5299 RE: The tariff classification of 4-bromo-3-hydroxybutyric acid ethyl ester (CAS # 32224-01-4) from Japan. Dear Mr. Corboy: In your letter dated July 23, 1990 you requested a tariff classification ruling. The applicable subheading for 4-bromo-3-hydroxybutyric acid ethyl ester (CAS # 32224-01-4) will be 2918.19.9000, Harmonized Tariff Schedule of the United States (HTS), which provides for non-aromatic carboxylic acids with oxygen functions. The rate of duty will be 4 percent ad valorem. This ruling is being issued under the provisions of Section 177 of the Customs Regulations (19 C.F.R. 177). A copy of this ruling letter should be attached to the entry documents filed at the time this merchandise is imported. If the documents have been filed without a copy, this ruling should be brought to the attention of the Customs officer handling the transaction. Sincerely, Jean F. Maguire Area Director New York Seaport