5-Sulfosalicylic Acid
5-Sulfosalicylic acid (5-hydroxy-2-sulfobenzoic acid) is a carboxylic acid with a phenol function and a sulfonic acid group. Despite the sulfonation, it is classified under tariff item 2918.29.00 as an 'other' product because the sulfonic group does not change its primary function as a phenolic carboxylic acid. It is used in analytical chemistry for protein precipitation and iron testing.
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 |
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Import Tips & Compliance
• Ensure the product is a separate chemically defined compound
• Note that sulfonated derivatives are not excluded from this subheading unless they fall under a more specific heading
• Provide a safety data sheet as the product may be hazardous
Related Products under Tariff item 2918.29.00
1-Hydroxy-2-Naphthoic Acid
1-Hydroxy-2-naphthoic acid is a chemically defined organic compound featuring both a carboxylic acid group and a phenolic hydroxyl group on a naphthalene ring. It falls under tariff item 2918.29.00 as an 'other' carboxylic acid with phenol function, not more specifically covered elsewhere in the chapter. It is commonly used as an intermediate in the synthesis of dyes and pharmaceuticals.
1-Hydroxy-2-Naphthoic Acid Phenyl Ester
1-Hydroxy-2-naphthoic acid phenyl ester is the phenyl ester derivative of the parent acid, classified with the acid per Chapter 29 ester rules. It retains the phenolic and carboxylic functions and is used in fine chemical synthesis. It falls under tariff item 2918.29.00 as an 'other' product of this subheading.
2,3-Cresotic Acid
2,3-Cresotic acid (2,3-dihydroxy-4-methylbenzoic acid) is a carboxylic acid with a phenol function, classified under tariff item 2918.29.00 as an 'other' product. It is a chemically defined compound used in organic synthesis and pharmaceutical intermediates. The presence of a methyl group does not remove it from this subheading.
2-Hydroxy-1-Naphthoic Acid
2-Hydroxy-1-naphthoic acid is a phenolic naphthoic acid with a carboxylic acid group and a hydroxyl group on adjacent positions. It is classified under tariff item 2918.29.00 as an 'other' carboxylic acid with phenol function. It is widely used in the synthesis of azo dyes and pharmaceutical intermediates.
2-Hydroxybenzoic Acid Calcium Salt
2-Hydroxybenzoic acid calcium salt (calcium salicylate) is the calcium salt of salicylic acid, classified with the parent acid under Chapter 29 salt rules. It falls under tariff item 2918.29.00 as an 'other' carboxylic acid with phenol function. It is used in pharmaceutical and cosmetic applications.
3-Hydroxybenzoic Acid Aqueous Solution 30%
3-Hydroxybenzoic acid aqueous solution 30% is a solution of a chemically defined compound in water, which qualifies under Chapter 29 note 1(d). It is classified under tariff item 2918.29.00 as an 'other' carboxylic acid with phenol function. This transport-stable liquid form is used in cosmetics and chemical synthesis.