Base
A820161996-04-10New YorkClassification

The tariff classification of L-Cysteine Base (CAS 52-90-4) from Japan.

U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced

Cross-Source Intelligence

Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-05-02 · Updates monthly

Summary

The tariff classification of L-Cysteine Base (CAS 52-90-4) from Japan.

Ruling Text

NY A82016 April 10, 1996 CLA-2-29:RR:NC:FC:239 A82016 CATEGORY: Classification TARIFF NO.: 2930.90.4550 Mr. Joseph J. Chivini Austin Chemical Company, Inc. 1565 Barclay Boulevard Buffalo Grove, Illinois 60089 RE: The tariff classification of L-Cysteine Base (CAS 52-90-4) from Japan. Dear Mr. Chivini: In your letter dated March 29, 1996, you requested a tariff classification ruling for L-Cysteine Base which you have stated is a pharmaceutical intermediate. The applicable subheading will be 2930.90.4550, Harmonized Tariff Schedule of the United States (HTS), which provides for organo-sulfur compounds: other. Pursuant to General Note 13 to the Harmonized Tariff Schedule, this product is duty free. 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 Thomas Brady at 212-466-5747. Sincerely, Roger J. Silvestri Director National Commodity Specialist Division