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.
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 the sulfonic acid groups are considered the primary functional characteristic
Sulphonated derivatives of phenols fall in heading 29.08, but Chapter Note 3(C)(1) directs salts to the organic compound's heading.
If imported as a directly usable dye rather than an intermediate
Finished azo dyes are excluded from Chapter 29 by Note 2(g) and belong in 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’ Classify as a naphthol salt under 2907.15.00; do not mistake it for a sulfonated derivative of heading 29.04
β’ Keep records of the manufacturing process to demonstrate it is not a finished dye
β’ Check if the product is subject to the Export and Import Permits Act for chemical precursors
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).
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.
Cosmetic Grade 2-Naphthol Powder
Ultra-pure Ξ²-Naphthol powder for use in cosmetic antioxidant formulations as a chemical intermediate remains under tariff item 2907.15.00 as a pure monophenol not excluded by end-use. It meets Chapter 29 note 1(a) as a separate chemically defined compound.