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NY 862205

MAY 01 1991

CLA-2-29:S:N:N1:239 862206


TARIFF NO.: 2934.90.4000

Mr. Wayne Buehrer
Tomen America Inc.
444 Market Street, Suite 1000
San Francisco, CA 94111

RE: The tariff classification of four chemicals from Japan.

Dear Mr. Buehrer:

In your letter dated March 29, 1991, you requested a tariff classification ruling the for following four chemicals:

Benzoyl 5'-dimethoxytrityl-2'-deoxyadenosine (CAS# 64325-78-6)

Benzoyl 5'-dimethoxytrityl-2'deoxycytidine (CAS# 67219-55-0)

Isobutyryl 5'-dimethoxytrityl-2'-deoxyguanosine (CAS# 68892-41-1)

Dimethoxytrityl thymidine (CAS# 40615-39-2)

The applicable subheading for these four chemicals will be 2934.90.4000, Harmonized Tariff Schedule of the United States (HTS), which provides for other aromatic heterocyclic compounds: products described in additional U.S. note 3 to section VI. The rate of duty will be 13.5 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.


Jean F. Maguire

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