Sodium 1-Naphthol-4-Sulfonate
Sodium 1-Naphthol-4-Sulfonate is the sodium salt of 1-naphthol-4-sulfonic acid, classified under tariff item 2907.15.00 as a naphthol salt. It serves as a diazo dye coupling component in textile coloration, where its naphthol structure is essential for the coupling reaction. The salt form is covered by Chapter 29 Note 5(C)(1), which directs inorganic salts of organic compounds to the heading of the parent compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | β | Free |
| π²π½Mexico | Free | β | Free |
| πΊπΈUnited States | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as the free sulfonic acid rather than the sodium salt
Sulphonated derivatives of phenols are classified in heading 29.08 when not in salt form.
If the product is formulated as a reactive dye for direct application
Reactive dyes and their preparations are excluded from Chapter 29 and fall under heading 32.04.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ Confirm the product is the sodium salt and not the free acid, as the salt form is specifically covered by the tariff item
β’ Provide the CAS number and structural formula in the import documentation to expedite CBSA clearance
β’ Be aware that the product may be regulated under the Canadian Environmental Protection Act (CEPA) for industrial use
Related Products under Tariff item 2907.15.00
1-Naphthol
1-Naphthol is a monophenolic compound derived from naphthalene, classified under tariff item 2907.15.00 as a naphthol. It is a chemically defined organic compound used primarily as an intermediate in organic synthesis, meeting Chapter 29 note 1(a).
1-Naphthol-3,6-Disulfonic Acid (H Acid precursor salt)
1-Naphthol-3,6-Disulfonic Acid (H Acid precursor salt) is a disulfonic acid salt of 1-naphthol, captured under tariff item 2907.15.00 as a naphthol salt. It is an intermediate for H-acid used in reactive dyes, and meets Chapter 29 note 1(a) as a separate chemically defined compound.
1-Naphthol Technical Grade
1-Naphthol technical grade is a separate chemically defined organic compound (C10H7OH) that falls under tariff item 2907.15.00 as a monophenol naphthol. It is used as an intermediate for antioxidants, rubber chemicals, and pharmaceuticals, and qualifies under Chapter 29 note 1(a) as a chemically defined compound.
2-Naphthol
2-Naphthol, also known as Ξ²-naphthol, is a key monophenol in the naphthols category under tariff item 2907.15.00. This separate chemically defined compound serves as a critical intermediate for azo dyes, antioxidants, and rubber chemicals, meeting Chapter 29 note 1(a).
2-Naphthol-6,8-Disulfonic Acid Disodium Salt (Schaeffer Salt)
2-Naphthol-6,8-Disulfonic Acid Disodium Salt (Schaeffer Salt) is a disulfonated naphthol derivative presented as a sodium salt. It falls under tariff item 2907.15.00 as an 'other' naphthol salt, used primarily as an intermediate in azo dye production for textiles and leather. The sulfonic acid groups do not alter the fundamental naphthol classification.
CAS 90-15-3 Ξ±-Naphthol Powder
CAS 90-15-3 identified Ξ±-Naphthol powder falls under tariff item 2907.15.00 as a pure monophenol naphthol, used in pharmaceutical synthesis of beta-blockers and antiseptics. Its chemical purity ensures classification within Chapter 29 note 1(a) as a separate chemically defined compound.