Pharmaceutical Grade o-Toluenesulfonamide USP
Pharmaceutical Grade o-Toluenesulfonamide USP is an ultra-pure sulfonamide meeting USP standards for pharmaceutical intermediate synthesis, particularly in sulfonamide antibiotic production. It is a chemically defined organic compound with a sulfonamide group, falling under sulphonamides of heading 29.35. The pharmaceutical grade ensures high purity for sensitive applications.
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 used as an amide in pharmaceutical synthesis
Amide-function compounds may be classified in heading 29.24.
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
• Pharmaceutical grade does not change classification; ensure the product is not put up as a medicament
• Check if a Drug Establishment Licence is required for the end-use
• Provide USP certification for customs verification
Related Products under Tariff item 2935.90.00
2,4-Dichloro-5-Sulfamoylbenzoic Acid
2,4-Dichloro-5-Sulfamoylbenzoic Acid is a key intermediate in sulfonamide herbicide synthesis and pharmaceutical manufacturing. This compound is classified under tariff item 2935.90.00 as an 'Other' sulphonamide due to its sulfonamide functional group. It is a chemically defined organic compound with chloro and carboxy substitutions.
2,5-Dimethoxysulfanilanilide
2,5-Dimethoxysulfanilanilide is a methoxylated sulfonanilide derivative classified under tariff item 2935.90.00 as an 'Other' sulphonamide. It is a chemically defined organic compound with dimethoxy substitutions on the sulfanilanilide structure. This product is used in dye chemistry and as an intermediate in organic synthesis.
2-Amino-N-ethylbenzenesulfonanilide
2-Amino-N-ethylbenzenesulfonanilide is a complex sulfonamide derivative classified under tariff item 2935.90.00 as an 'Other' sulphonamide. It features amino, ethyl, and anilino substitutions on the benzenesulfonamide core. This chemically defined compound is used as an intermediate in pharmaceutical and dye synthesis.
2-Chloro-4-amino-5-hydroxybenzenesulfonamide
2-Chloro-4-amino-5-hydroxybenzenesulfonamide is a halogenated and hydroxylated sulfonamide classified under tariff item 2935.90.00 as an 'Other' sulphonamide. It features chloro, amino, and hydroxy substitutions on the benzenesulfonamide core. This chemically defined compound is used as an intermediate in pharmaceutical synthesis.
4-Amino-6-chloro-m-benzenedisulfonamide
4-Amino-6-chloro-m-benzenedisulfonamide is a chemically defined organic compound containing sulfonamide groups, falling under tariff item 2935.90.00 as an 'Other' sulphonamide. It is primarily used as an intermediate in pharmaceutical synthesis, specifically for producing sulfonamide-based drugs. Its structure includes two sulfonamide functional groups, which are characteristic of this heading.
4-Amino-6-chloro-m-benzenedisulfonamide Technical Grade
Technical grade 4-Amino-6-chloro-m-benzenedisulfonamide with 95-98% purity qualifies under tariff item 2935.90.00 as a chemically defined organic compound 'whether or not containing impurities' per Chapter 29 Note 1(a). It is used as an intermediate in pharmaceutical synthesis, and the impurities are incidental to the manufacturing process. The product retains its identity as a sulphonamide compound.