U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced
Primary HTS Code
:2927.00.4000
$3.0M monthly imports
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Ruling Age
27 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-05-02 · Updates monthly
The tariff classification of 4,4'-Azobis[4-cyanopentanoic acid] (CAS # 2638-94-0) from Japan
NY E80503 April 23, 1999 CLA-2-29:RR:NC:2:240 E80503 CATEGORY: Classification TARIFF NO.:2927.00.4000 Ms. Dina Donnelly Aceto Corporation One Hollow Lane Lake Success, New York 11042 RE: The tariff classification of 4,4'-Azobis[4-cyanopentanoic acid] (CAS # 2638-94-0) from Japan Dear Ms. Donnelly: In your letter dated March 31, 1999, you requested a tariff classification ruling. The applicable subheading for 4,4'-Azobis[4-cyanopentanoic acid] also known as 4,4’-Azobis(4-cyanovaleric acid) will be 2927.00.4000, Harmonized Tariff Schedule of the United States (HTS), which provides for Diazo-, azo- or azoxy-compounds: Other: Other: Products described in additional U.S. note 3 to section VI...... The rate of duty will be 10 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 212-637-7066. Sincerely, Robert B. Swierupski Director, National Commodity Specialist Division