2921.59.80.90/3,3'-Dimethylbenzidine (o-Tolidine)/China

3,3'-Dimethylbenzidine (o-Tolidine) from China

3,3'-Dimethylbenzidine, also known as o-tolidine, serves as an intermediate for azo pigments and analytical reagents. Classified in HTS 2921.59.80.90 as other aromatic polyamine with methyl substitution. The ortho-methyl groups influence coupling reactivity.

Duty Rate — China → United States

31.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• CAS 119-93-7 confirmation required on all shipping documents

• Quantity limits may apply due to carcinogen status under TSCA

• Purity specification >98% critical for Chapter 29 compound status