4-Nitroimidazole from Japan

4-Nitroimidazole serves as a synthetic intermediate for nitroimidazole antibiotics like metronidazole. Its unfused imidazole ring with nitro substitution places it under HTS 2933.29.90.00 as other nitrogen-heterocyclic compounds.

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

• Declare nitro content and provide explosive classification test results (UN 1224 if applicable)

• Use UN-approved packaging for nitro compounds to comply with DOT hazardous materials regulations

• Verify no sulfonation present which would shift classification to different subheading