Streptomycin Sulfate USP
Streptomycin sulfate is a natural antibiotic derived from Streptomyces griseus, used primarily to treat tuberculosis and plague. It falls under HTS 2941.90.10.50 as a natural antibiotic not specifically named elsewhere in heading 2941. This powder form is chemically defined and meets chapter 29 requirements for separate organic compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If semi-synthetic derivative
Semi-synthetic modifications like esterification move to 'other' antibiotics beyond natural ones.
If formulated as capsules or tablets
Bulk antibiotic powder becomes a medicaments when mixed with excipients for dosage forms.
If put up in measured doses for retail
Retail-packaged antibiotic preparations shift from bulk chemicals to finished medicaments.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Obtain FDA import approval and ensure Certificate of Analysis confirms natural origin and purity >99%
• Provide documentation proving derivation from microbial fermentation, not synthetic production
• Avoid misclassification as veterinary use; specify human pharmaceutical grade on entry
Related Products under HTS 2941.90.10.50
Polymyxin B Sulfate Powder
Polymyxin B sulfate, a natural polypeptide antibiotic from Bacillus polymyxa, treats multidrug-resistant Gram-negative infections. Classified under HTS 2941.90.10.50 as an unnamed natural antibiotic per chapter notes for chemically defined organic compounds. Supplied as sterile bulk powder for pharmaceutical compounding.
Bacitracin Zinc USP
Bacitracin zinc, produced by Bacillus subtilis fermentation, is a natural polypeptide antibiotic for topical bacterial infections. HTS 2941.90.10.50 covers this unnamed natural antibiotic as a chemically defined organic compound salt per chapter note (C). The zinc salt form maintains classification with the base antibiotic.
Tyrothricin Powder
Tyrothricin, a natural antibiotic complex from Bacillus brevis containing gramicidin and tyrocidine, used in topical antimicrobials. Falls under HTS 2941.90.10.50 as other natural antibiotics, being a separate chemically defined mixture of isomers from chapter note (b). Primarily imported as bulk powder for formulation.
Viomycin Sulfate
Viomycin sulfate, a natural tuberculostatic antibiotic from Streptomyces puniceus, used in multi-drug resistant TB treatment. HTS 2941.90.10.50 applies to this unnamed natural antibiotic as a chemically defined compound meeting chapter inclusion criteria. Typically imported in bulk for pharmaceutical research and compounding.
Capreomycin Sulfate USP
Capreomycin sulfate, derived from Streptomyces capreolus, is a natural cyclic peptide antibiotic for MDR-TB. Classified in HTS 2941.90.10.50 as other natural antibiotics, qualifying as chemically defined organic compound under chapter note (a). Bulk powder form for injection preparation.