6-(Methylamino)-1-naphthol-3-sulfonic Acid
6-(Methylamino)-1-naphthol-3-sulfonic Acid is an amino-naphthol sulfonic acid derivative. It features a naphthol structure with a methylamino substituent and a sulfonic acid group. It is a key intermediate for reactive dyes and pharmaceuticals.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the amino function is the primary characteristic
Amino-naphthols may be classified under heading 2921.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the product is not a dye itself but an intermediate
• Sulfonic acid groups are not oxygen functions for this heading
• Provide the CAS number and purity data
• Ensure the product is not put up for retail sale
Related Products under Tariff item 2922.29.00
2,2-Bis[4-(4-aminophenoxy)phenyl]propane (CAS 13080-86-9)
2,2-Bis[4-(4-aminophenoxy)phenyl]propane (CAS 13080-86-9), also known as Bis-APAF, features two aminophenol ether units linked by a propane bridge. It is classified as a specified amino-phenol ether. It serves as a monomer for high-performance polymers.
2,2-Bis[4-(4-aminophenoxy)phenyl]propane Crystals
2,2-Bis[4-(4-aminophenoxy)phenyl]propane Crystals are the crystalline form of the compound. The crystalline form does not change the classification. It is used in thermoset polyimides for circuit boards.
2-(3-Amino-4-hydroxyphenylsulfonyl)ethanol
2-(3-Amino-4-hydroxyphenylsulfonyl)ethanol is a complex amino-phenol with a sulfonyl ethanol side chain. The phenolic amino structure dominates classification, and it is used in specialty dye synthesis as an oxygen-function amino-compound.
2-Amino-4-chlorophenol Hydrochloride
2-Amino-4-chlorophenol Hydrochloride is the hydrochloride salt of 2-amino-4-chlorophenol. The salt form maintains classification with the parent amino-phenol per Chapter 29 note 5(C)(1), and it is used as a chemical intermediate.
2-Amino-4-nitrophenol
2-Amino-4-nitrophenol is a specific amino-phenol compound with both amino and hydroxyl oxygen functions. It is primarily used as an intermediate in the synthesis of dyes and pharmaceuticals. This product falls under tariff item 2922.29.00 as an 'Other' amino-naphthol or amino-phenol compound.
2-Amino-4-nitrophenol Sodium Salt
2-Amino-4-nitrophenol Sodium Salt is the sodium salt form of 2-amino-4-nitrophenol. Salts of amino-phenols classify with the parent compound per Chapter 29 Note 5(C)(1). It is used in water-soluble dye intermediates and analytical reagents.