Ms. Dina Donnelly
Aceto Corporation
One Hollow Lane
Lake Success, NY 11042

RE: The tariff classification of 4-Chloro-2-phenyl-5-(phenylmethyl)-amino-3(2H)-pyridazinone, CAS No, 222177-39-1, from India

Dear Ms. Donnelly:

In your letter dated October 1, 2008, you requested a tariff classification ruling for 4-Chloro-2-phenyl-5-(phenylmethyl)-amino-3(2H)-pyridazinone. The product is an aromatic heterocyclic compound containing two nitrogen heteroatoms. There was no information found regarding product use.

The applicable subheading will be 2933.99.7900, Harmonized Tariff Schedule of the United States (HTSUS), which provides for Heterocyclic compounds with nitrogen hetero-atom(s) only: Other: Other: Aromatic or modified aromatic: Other: Other: Products described in additional U.S. note 3 to section VI. The rate of duty will be 6.5 percent ad valorem.

Duty rates are provided for your convenience and are subject to change. The text of the most recent HTSUS and the accompanying duty rates are provided on World Wide Web at

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 Richard Dunkel at 646-733-3032.


Robert B. Swierupski
National Commodity Specialist Division