2929.10.27.00/1,5-Naphthalene Diisocyanate/Japan

1,5-Naphthalene Diisocyanate from Japan

1,5-Naphthalene diisocyanate (CAS 3173-72-6) is a polycyclic aromatic diisocyanate used in high-performance polyurethane elastomers and coatings requiring thermal stability. It is specifically named in HTS 2929.10.2700 as a diisocyanate compound with other nitrogen function, fitting Chapter 29's organic compound definitions.

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

• 1

• Diisocyanates require specific DOT Hazard Class 6.1 labeling; 2

• Include end-use statement if for R&D vs commercial production; 3

• Stabilizer additions must not change classification per Chapter note (f)