Dihydrostreptomycin Sulfate USP

Dihydrostreptomycin sulfate is the sulfate salt of dihydrostreptomycin, a semi-synthetic aminoglycoside antibiotic derived from streptomycin. It is chemically defined as a separate organic compound and falls under HTS 2941.20.10.00 as a dihydrostreptomycin derivative salt used primarily in veterinary and human antibiotic formulations.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.5%3.5%
🇲🇽Mexico3.5%3.5%
🇨🇦Canada3.5%3.5%
🇩🇪Germany3.5%3.5%
🇯🇵Japan3.5%3.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3003.39Higher: 10% vs 3.5%

If when formulated as finished dosage form like injectable suspension

Finished pharmaceutical preparations containing dihydrostreptomycin salts are classified in Chapter 30 as medicaments, not bulk chemicals.

3004.90Higher: 10% vs 3.5%

If for veterinary antibiotic injections or powders

Veterinary medicaments in dosage form shift to Chapter 30, regardless of active ingredient classification.

2941.10.10Lower: Free vs 3.5%

If the base streptomycin (not dihydro) is the primary compound

Streptomycin and derivatives are separated; only dihydrostreptomycin specifically falls under 2941.20.

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Import Tips & Compliance

Provide Certificate of Analysis (CoA) confirming USP grade purity and identity as dihydrostreptomycin sulfate to avoid reclassification

Ensure FDA prior notice and drug import documentation; veterinary vs human use affects labeling requirements

Verify absence of impurities exceeding pharmacopeia limits to maintain classification under Chapter 29 antibiotics