8-Amino-1-naphthalenesulfonic acid (Schaeffer's Acid)
Schaeffer's Acid (8-Amino-2-naphthalenesulfonic acid) is a crucial intermediate for producing direct and reactive dyes, featuring an amino group ortho to the sulfonic acid on naphthalene. It is classified under tariff item 2921.45.00 as a derivative of naphthylamine.
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 |
More Specific Codes
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Import Tips & Compliance
• Verify the product is a single chemically defined compound; provide a certificate of analysis
• Check if the acid is subject to Canadian customs regulations for hazardous materials
• Keep records of the import for CBSA compliance
Related Products under Tariff item 2921.45.00
1-Naphthylamine-4,8-disulfonic Acid
1-Naphthylamine-4,8-disulfonic acid is a disulfonic acid derivative of 1-naphthylamine, used as a dye intermediate in textile and leather applications. It retains the primary amine function and is classified under the tariff item for naphthylamine derivatives. The presence of two sulfonic acid groups does not change its classification as an aromatic monoamine derivative.
1-Naphthylamine-4,8-disulfonic Acid (C Acid)
C Acid, or 1-naphthylamine-4,8-disulfonic acid, is a disulfonated derivative of 1-naphthylamine used in azo dye synthesis for textiles and leather. It is a chemically defined aromatic monoamine, classified under the tariff item for naphthylamine derivatives. The amine function is the principal characteristic, aligning with heading 29.21.
1-Naphthylamine-4,8-disulfonic Acid (Casella's Acid)
1-Naphthylamine-4,8-disulfonic acid, also known as Casella's acid, is a naphthylamine derivative with two sulfonic acid groups, used primarily as an intermediate in the synthesis of direct dyes. It retains the primary amine function characteristic of heading 29.21, and its sulfonic acid substituents do not alter its classification as an aromatic monoamine derivative. This tariff item covers 1-naphthylamine, 2-naphthylamine, and their derivatives, including salts thereof.
1-Naphthylamine-5-sulfonic Acid (Laurent's Acid)
Laurent's acid, or 1-naphthylamine-5-sulfonic acid, is a monosulfonated derivative of 1-naphthylamine, used in the manufacturing of acid dyes for wool and silk. It is a chemically defined aromatic monoamine, classified under the tariff item for naphthylamine derivatives. The amine function is the principal characteristic, aligning with heading 29.21.
1-Naphthylamine-8-sulfonic Acid (Peri Acid)
Peri acid, or 1-naphthylamine-8-sulfonic acid, is a derivative of 1-naphthylamine used in azo pigment synthesis for inks and coatings. It is a chemically defined aromatic monoamine with a sulfonic acid group, classified under the tariff item for naphthylamine derivatives. The primary amine function determines its classification in heading 29.21.
1-(Phenylamino)naphthalin-8-sulfonic Acid
1-(Phenylamino)naphthalin-8-sulfonic acid is an N-phenyl substituted derivative of peri acid, used in acid dye manufacture. It retains the naphthylamine structure and is classified under the tariff item for naphthylamine derivatives. The N-phenyl substitution does not remove it from the scope of aromatic monoamine derivatives.