U.S. Customs and Border Protection · CROSS Database · 2 HTS codes referenced
Primary HTS Code
2934.10.7000
$30.9M monthly imports
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Ruling Age
30 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-04-29 · Updates monthly
The tariff classification of 2-N-Ocyl-4-Isothiazolin-3-One and 4,5-Dichloro-2-N-Ocyl-4-Isothiazolin-3-One from England.
NY 811958 June 28, 1995 CLA-2-29:S:N:N7:239 811958 CATEGORY: Classification TARIFF NO.: 2934.10.7000, 2934.10.9000 Mr. Peter L. Stormer Rohm and Haas Company Independence Mall West Philadelphia, PA 19105 RE: The tariff classification of 2-N-Ocyl-4-Isothiazolin-3-One and 4,5-Dichloro-2-N-Ocyl-4-Isothiazolin-3-One from England. Dear Mr. Stormer: In your letter dated June 19, 1995, you requested a tariff classification ruling for 2-n-ocyl-4-isothiazolin-3-one (CAS 26530-20-1) and 4,5-dichloro-2-n-ocyl-4-isothiazolin-3-one (CAS 64359-81-5). The applicable subheading for 2-n-ocyl-4-isothiazolin-3-one will be 2934.10.9000/7.6 percent ad valorem, and for 4,5- dichloro-2-n-ocyl-4-isothiazolin-3-one will be 2934.10.7000/duty free, Harmonized Tariff Schedule of the United States (HTS), which provides for other heterocyclic compounds: compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure: other. 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