3,3'-Dimethylbenzidine (o-Tolidine) from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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