U.S. Customs and Border Protection · CROSS Database · 2 HTS codes referenced
Primary HTS Code
2905.39.5000
$6.7M monthly imports
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Ruling Age
34 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-04-29 · Updates monthly
The tariff classification of butynediol, technical flakesand tetrahydrofuran from Germany.
NY 873203 April 21, 1992 CLA-2-29:S:N:N1:235 873203 CATEGORY: Classification TARIFF NO.: 2905.39.5000, 2932.11.0000 Mr. Richard B. Olsen, Vice President Finance & Planning, International Specialty Products 1361 Alps Road Wayne, New Jersey 07470 RE: The tariff classification of butynediol, technical flakes and tetrahydrofuran from Germany. Dear Mr. Olsen: In your letter dated March 18, 1992, you requested a tariff classification ruling. The applicable subheading and rate of duty under the Harmonized Tariff Schedule of the United States (HTS), are listed below. Chemical Subheading Duty butynediol (CAS # 110-65-6) 2905.39.5000 12.3 percent ad valorem tetrahydrofuran (CAS # 109-99-9) 2932.11.0000 3.7 " " " 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