2921.51.10.00/o-Phenylenediamine Dihydrochloride/Japan

o-Phenylenediamine Dihydrochloride from Japan

The dihydrochloride salt of o-phenylenediamine used in pharmaceutical synthesis and analytical reagents. Although base form is named, chapter notes place salts with the parent aromatic polyamine in HTS 2921.51.10.00.

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%

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Import Tips

• Confirm stoichiometric HCl content to validate salt classification

• Include water content analysis as salts are hygroscopic

• Segregate from strong oxidizers per DOT hazardous material regulations