CAS 137-30-4 1,8-Naphthalenediamine Powder from Japan
Pure powdered 1,8-naphthalenediamine (CAS 137-30-4) is an aromatic polyamine essential for synthesizing azo dyes and rubber antioxidants. It matches HTS 2921.59.04.00 as the explicitly named compound in the tariff schedule.
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
• Include NMR or HPLC analysis reports for purity verification; use nitrogen-flushed packaging to prevent oxidation; check for DOT hazardous classification