Tiobutramine (active pharmaceutical ingredient)
Tiobutramine is an organo-sulfur veterinary drug intermediate with thio-butyl side chain for animal health applications. Sulfur-carbon direct linkage qualifies it under heading 2930 organo-sulfur compounds. Falls in drug subheading 2930.90.92.35 despite veterinary focus.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-pharmaceutical grade
Veterinary intermediates without USP may classify as other organo-sulfur.
If nucleic acid derivative emphasized
Nucleosides take precedence in later numerical order per Chapter notes.
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Import Tips & Compliance
• Distinguish from human drugs with veterinary labeling to avoid FDA human drug pathways
• Provide target species documentation for CVM import alerts
• Bulk chemical appearance common pitfall; use pharma-grade COA
Related Products under HTS 2930.90.92.35
Sulfasalazine USP
Sulfasalazine is a synthetic organo-sulfur compound used primarily as an anti-inflammatory drug for treating ulcerative colitis and rheumatoid arthritis. It features a sulfonamide group directly linked to carbon atoms, qualifying it as an organo-sulfur compound under heading 2930. Classified specifically under 2930.90.92.35 as a pharmaceutical drug.
Probenecid USP
Probenecid is an organo-sulfur compound functioning as a uricosuric agent to treat gout by inhibiting uric acid reabsorption. Its sulfanyl-containing structure links sulfur directly to carbon, fitting Chapter 29 heading 2930 for organo-sulfur compounds. Falls under the 'drugs' subheading 2930.90.92.35 due to its pharmaceutical application.
Dapsone USP
Dapsone is an organo-sulfur antibacterial drug used for leprosy and dermatitis herpetiformis treatment. Its diphenylsulfone structure features sulfur directly linked to aromatic carbons, characteristic of heading 2930 organo-sulfur compounds. Designated as a drug in subheading 2930.90.92.35.
Mesna USP
Mesna is an organo-sulfur compound used as a cytoprotective agent during chemotherapy to prevent hemorrhagic cystitis. Its mercaptoethane sulfonate structure has sulfur directly linked to carbon atoms per heading 2930 definition. Classified as a pharmaceutical drug in 2930.90.92.35.
Methimazole USP
Methimazole is an organo-sulfur antithyroid drug containing thiazole ring with direct S-C bonds, used for hyperthyroidism. As an organo-sulfur heterocyclic compound, it properly falls under heading 2930. Specified in the pharmaceutical drugs subheading 2930.90.92.35.
Sulfadiazine Sodium
Sulfadiazine sodium is the sodium salt of an organo-sulfur sulfonamide antibiotic used for toxoplasmosis and burns. As per Chapter 29 notes, inorganic salts of organic compounds classify with the organic base, retaining its 2930 organo-sulfur status. Included as a drug under 2930.90.92.35.