2921.45.90.10/High Assay Tobias Acid 99.5%/Japan

High Assay Tobias Acid 99.5% from Japan

Premium 99.5% assay Tobias acid for direct black dye synthesis. Meets Chapter 29 criteria as separate chemically defined compound under HTS 2921.45.90.10. Low isomer content <0.1%.

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%

Calculate with your customs value Verify classification with AI

Import Tips

• HPLC chromatogram required showing <0.05% β-naphthylamine (carcinogen)

• ICH Q3C residual solvent limits strictly enforced

• NMT 50 ppm iron; stainless steel manufacturing equipment verification