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TDI Diazo Ester Intermediate from Japan

1-Naphthalenesulfonic acid, 3-diazo-3,4-dihydro-4-oxo-ar'-(1-methylethyl)[1,1'-biphenyl]-4-yl ester used as synthesis intermediate for advanced photoresists in semiconductor production. Enumerated specifically in HTS 2927.00.18.00 diazo compounds subheading.

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

Semiconductor industry imports require NIST-traceable purity certificates (>99.5% typically)

ITAR/EAR export controls may apply to downstream semiconductor uses; verify end-use statements

Avoid bulk mixture classification—separate pure compounds maintain Chapter 29 status

TDI Diazo Ester Intermediate from Japan — Import Duty Rate | HTS 2927.00.18.00