1,5-Naphthalenedisulfonic Acid from Germany
1,5-Naphthalenedisulfonic acid is a di-sulfonated naphthalene derivative explicitly provided for in HTS 2904.10.10.00 as a sulfonated hydrocarbon with only sulfo groups. It is widely used in the production of azo dyes and optical brighteners.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Include NMR or HPLC purity certificates; impurities may affect classification purity requirements
• Label as UN 3265 corrosive liquid for proper hazmat shipping compliance
• Check REACH compliance for EU transshipments involving this dye intermediate