The tariff classification of TNTU and TSTU from Japan.
Issued October 21, 1994 by U.S. Customs and Border Protection.
Cite this ruling
Copies to clipboard80 802087 (October 21, 1994)
Tariff classification
HTS codes: 2933.79.5000
Headings: 2933
Product description
The tariff classification of TNTU and TSTU from Japan.
CBP rationale
The applicable subheading for both products will be 2933.79.5000, Harmonized Tariff Schedule of the United States (HTS), which provides for heterocyclic compounds with nitrogen hetero-atom(s) only: nucleic acids and their salts: other lactams.
Full text
NY 802087 October 21, 1994 CLA-2-29:S:N:N7:239 802087 CATEGORY: Classification TARIFF NO.: 2933.79.5000 Mr. Jason Bertola Aceto Corporation One Hollow Lane Lake Success, NY 11042-1215 RE: The tariff classification of TNTU and TSTU from Japan. Dear Mr. Bertola: In your letter dated September 8, 1994 you requested a tariff classification ruling for TNTU (CAS Registry Name - N-[(dimethylamino)[(1,3,3a,4,7,7a-hexahydro-1,3-dioxo-4,7-methano-2H-isoindol-2-yl)oxy]methylene-N-methyl-methanaminium tetrafluoroborate(1-) CAS 125700-73-4, which is a peptide coupling reagent, and TSTU (CAS Registry Name - N-[dimethylamino)[(2,5-dioxo-1-pyrrolidinyl)oxy]methylene]-N-methyl-methanamium tetrafluoroborate(1-) CAS 105832-38-0, which is aslo a coupling reagent. The applicable subheading for both products will be 2933.79.5000, Harmonized Tariff Schedule of the United States (HTS), which provides for heterocyclic compounds with nitrogen hetero-atom(s) only: nucleic acids and their salts: other lactams. The rate of duty will be 7.9 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
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