Mr. Joseph J. Chivini
Austin Chemical Company, Inc.
1565 Barclay Boulevard
Buffalo Grove, Illinois 60089

RE: The tariff classification of Crotonaldehyde, CAS 4170-30-3 from China

Dear Mr. Chivini:

In your letter dated July 19, 2007, you requested a tariff classification ruling.

Crotonaldehyde, CAS 4170-30-3, also known as 2-Butenal, is a bulk pharmaceutical intermediate.

The applicable subheading Crotonaldehyde for will be 2912.19.5000, Harmonized Tariff Schedule of the United States (HTSUS), which provides for Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde: Acyclic aldehydes without other oxygen function: Other: Other: Other. The rate of duty will be 5.5 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 Stephanie Joseph at 646-733-3268.


Robert B. Swierupski
National Commodity
Specialist Division