Polymyxin B Sulfate Powder
Polymyxin B sulfate is a polypeptide antibiotic effective against Gram-negative bacteria, used in topical and systemic formulations. Classified under HTS 2941.90.50.00 as an 'other' antibiotic substance in bulk powder form. Meets Chapter 29 requirements for chemically defined organic compounds used primarily as antibiotics.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically enumerated narrow-spectrum antibiotic
Certain named antibiotics have specific subheadings earlier in 2941 taking precedence by numerical order.
If put up in dosage form like eye drops
Antibiotics in measured doses or retail packs classify as medicaments of Chapter 30, not bulk substances.
If containing hormones rather than primarily antibiotic
Chapter notes specify antibiotics remain in 2941; hormone-primary compounds move to 2937.
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Import Tips & Compliance
• Include stability data and sterility test results; polymyxins are heat-sensitive and require specific storage declarations
• Declare exact potency (IU/mg) per USP standards to prevent undervaluation disputes at customs
• Confirm not for immediate retail sale; bulk API status prevents shift to Chapter 30 medicaments
Related Products under HTS 2941.90.50.00
Streptomycin Sulfate USP
Streptomycin sulfate is a semi-synthetic aminoglycoside antibiotic derived from Streptomyces griseus, used primarily for treating tuberculosis and other bacterial infections. It falls under HTS 2941.90.50.00 as an 'other' antibiotic not specifically enumerated elsewhere in heading 2941. This classification applies to pure antibiotic substances meeting Chapter 29 notes for chemically defined organic compounds.
Vancomycin Hydrochloride USP
Vancomycin hydrochloride is a glycopeptide antibiotic used for serious Gram-positive infections including MRSA. This bulk active pharmaceutical ingredient (API) falls under HTS 2941.90.50.00 as an 'other' antibiotic not covered by specific streptomycins or penicillins provisions. Qualifies as chemically defined per Chapter 29 note (a).
Gentamicin Sulfate BP
Gentamicin sulfate is an aminoglycoside antibiotic complex effective against aerobic Gram-negative bacteria. Imported as bulk powder for pharmaceutical formulation, it classifies under HTS 2941.90.50.00 as 'other' antibiotics. Complies with Chapter 29 requirements for separate chemically defined compounds.
Neomycin Sulfate USP Powder
Neomycin sulfate is an aminoglycoside antibiotic used primarily in topical formulations and veterinary medicine. This sterile bulk powder API classifies under HTS 2941.90.50.00 as other antibiotics. Defined as chemically pure organic compound per Chapter 29 scope.
Bacitracin Zinc Powder
Bacitracin zinc is a polypeptide antibiotic combined with zinc for stability, used in topical ointments. Falls under HTS 2941.90.50.00 as other antibiotics; zinc salt classified with parent antibiotic per Chapter 29 note 3(C)(1). Chemically defined organic compound meeting chapter criteria.
Colistin Sulfate USP
Colistin sulfate (polymyxin E) is a last-resort antibiotic for multi-drug resistant Gram-negative infections. Bulk API powder imports under HTS 2941.90.50.00 as other antibiotics. Qualifies as pure chemically defined compound under Chapter 29 notes.