CAS 137-30-4 1,8-Naphthalenediamine Powder from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include NMR or HPLC analysis reports for purity verification; use nitrogen-flushed packaging to prevent oxidation; check for DOT hazardous classification