Chapter 2941 — Customs Tariff Headings

2941.20.00Streptomycins and their derivatives; salts thereof

2941.30.00Tetracyclines and their derivatives; salts thereof

2941.40.00Chloramphenicol and its derivatives; salts thereof

2941.50.00Erythromycin and its derivatives; salts thereof

2941.90.00Other

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Products classified under Tariff item 29.41

Amoxicillin Trihydrate

Amoxicillin trihydrate is a hydrated form of the semisynthetic penicillin antibiotic amoxicillin, featuring the penicillanic acid structure and used widely for respiratory and other bacterial infections. As a penicillin derivative, it is classified under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Ampicillin Monohydrate EP Grade

Ampicillin monohydrate, a hydrated salt form of the penicillin antibiotic ampicillin, meeting European Pharmacopoeia standards. It is a separate chemically defined compound with a penicillanic acid structure, used in pharmaceutical formulations.

Ampicillin Sodium Salt

Ampicillin sodium salt, a sodium salt derivative of ampicillin, a semisynthetic penicillin antibiotic effective against gram-positive and gram-negative bacteria. This chemically defined compound retains the penicillanic acid structure and is used as a bulk pharmaceutical ingredient.

Ampicillin Trihydrate

Ampicillin trihydrate, the trihydrate salt form of ampicillin, a beta-lactam antibiotic with a penicillanic acid structure used to treat bacterial infections. This hydrated crystalline form is a separate chemically defined compound used in oral and parenteral pharmaceutical products.

Benzathine Benzylpenicillin Powder

Benzathine benzylpenicillin, also known as Penicillin G benzathine, is a salt form of Penicillin G used for intramuscular injections to treat syphilis and other bacterial infections. This chemically defined compound has a penicillanic acid structure and is a penicillin derivative.

Benzathine Penicillin G

Benzathine penicillin G is the dibenzylamine salt of penicillin G, with a penicillanic acid structure, formulated as a long-acting intramuscular injection for syphilis and rheumatic fever prophylaxis. As a salt of a penicillin derivative, it falls under tariff item 2941.10.00, which covers penicillins and their salts.

Benzathine Penicillin G for Injection

Sterile benzathine penicillin G powder intended for suspension in injections treating group A streptococcus. This is a bulk salt of Penicillin G with penicillanic acid structure, not a finished dosage form, and is classified as a penicillin derivative.

Bulk Ampicillin API for Generic Manufacturing

Bulk ampicillin API for generic drug manufacturing, typically in trihydrate salt form. This penicillin derivative with penicillanic acid structure is a chemically defined compound used as the active ingredient in generic antibiotic products.

Carbenicillin Sodium

Carbenicillin sodium is an early carboxypenicillin antibiotic with a penicillanic acid structure, used for its activity against Gram-negative bacteria, particularly Pseudomonas. As a sodium salt of a penicillin derivative, it is classified under tariff item 2941.10.00, which covers penicillins and their salts.

Carfecillin Sodium Bulk Pharmaceutical

Carfecillin sodium, a prodrug form of carbenicillin, is a penicillin derivative with penicillanic acid structure. This bulk chemical is used in manufacturing oral and injectable antibiotic products and is a separate chemically defined compound.

Cloxacillin Sodium

Cloxacillin sodium is a penicillinase-resistant penicillin derivative with a penicillanic acid structure, supplied as a sodium salt for parenteral administration. It falls under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Cloxacillin Sodium Powder

Cloxacillin sodium is a beta-lactamase resistant penicillin antibiotic used primarily for treating staphylococcal infections. This sodium salt derivative has a penicillanic acid structure and is a chemically defined compound.

Dicloxacillin Sodium

Dicloxacillin sodium is a dual-chlorinated penicillin derivative with a penicillanic acid structure, used as a sodium salt for oral or intravenous administration against penicillinase-producing staphylococci. As a penicillin salt, it is classified under tariff item 2941.10.00.

Dicloxacillin Sodium USP Grade

Dicloxacillin sodium is a narrow-spectrum penicillin effective against beta-lactamase producing staphylococci. This USP-grade bulk powder has a penicillanic acid structure and is used by pharmaceutical companies for formulating antibiotic products.

Flucloxacillin (Floxacillin) Sodium Sterile

Flucloxacillin sodium sterile is a beta-lactamase-resistant isoxazolyl penicillin antibiotic, supplied as a sterile bulk powder for reconstitution into intravenous or intramuscular injections. Its penicillanic acid core and sodium salt form place it under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Flucloxacillin Sodium

Flucloxacillin sodium is a beta-lactamase-stable penicillin derivative with a penicillanic acid structure, supplied as a sodium salt for enhanced solubility and parenteral use. It falls under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Mezlocillin Sodium

Mezlocillin sodium is an acylureidopenicillin derivative with a penicillanic acid structure, used as a sodium salt for broad-spectrum antibacterial activity. As a penicillin derivative salt, it is classified under tariff item 2941.10.00.

Micronized Ampicillin Powder

Micronized ampicillin powder with a particle size D90 below 10 microns, processed to improve bioavailability in oral suspensions. The physical form does not alter the chemical classification as a penicillin derivative with penicillanic acid structure.

Nafcillin Sodium

Nafcillin sodium is a penicillinase-stable penicillin derivative with a penicillanic acid structure, used as a sodium salt for severe staphylococcal infections. It falls under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Oxacillin Sodium

Oxacillin sodium is an isoxazolyl penicillin derivative with a penicillanic acid structure, used as a sodium salt for coverage against methicillin-resistant Staphylococcus aureus. As a penicillin salt, it is classified under tariff item 2941.10.00.

Oxacillin Sodium Monohydrate API

Oxacillin sodium monohydrate is a first-generation isoxazolyl penicillin antibiotic with a penicillanic acid structure, used primarily in hospital settings against methicillin-sensitive Staphylococcus aureus. As a sodium salt of a penicillin derivative, it falls under tariff item 2941.10.00, which covers penicillins and their salts.

Pharmaceutical Grade Ampicillin Base

High-purity ampicillin free base in anhydrous form, a semisynthetic penicillin antibiotic with a penicillanic acid structure. This chemically defined compound is used as an intermediate for producing various ampicillin salts in pharmaceutical manufacturing.

Phenoxymethylpenicillin Potassium

Phenoxymethylpenicillin potassium, also known as Penicillin V potassium, is an oral penicillin derivative with a penicillanic acid structure, supplied as a potassium salt for improved solubility. It falls under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Piperacillin Sodium

Piperacillin sodium is the sodium salt of piperacillin, an extended-spectrum penicillin with a penicillanic acid structure, used in hospital settings for intravenous antibiotic therapy. As a penicillin derivative salt, it is classified under tariff item 2941.10.00.

Potassium Benzylpenicillin

Potassium benzylpenicillin, also known as Penicillin G potassium, is a salt derivative of benzylpenicillin with a penicillanic acid structure, used intravenously for serious infections. It falls under tariff item 2941.10.00, which covers penicillins and their derivatives with a penicillanic acid structure, including salts.

Potassium Benzylpenicillin Bulk API

Potassium benzylpenicillin, the potassium salt of Penicillin G, is a water-soluble antibiotic used intravenously for severe infections. This chemically defined penicillin salt has a penicillanic acid structure and is a bulk pharmaceutical ingredient.

Procaine Benzylpenicillin USP Grade

Procaine benzylpenicillin (Penicillin G procaine) is a repository salt form providing prolonged antibiotic action against streptococcal infections. This chemically defined compound has a penicillanic acid structure and is used as a bulk antibiotic.

Procaine Penicillin G

Procaine penicillin G is the procaine salt of benzylpenicillin with a penicillanic acid structure, providing a long-acting intramuscular depot effect for treating syphilis and other infections. As a penicillin derivative salt, it is classified under tariff item 2941.10.00.

Sodium Ampicillin

Sodium Ampicillin is the sodium salt of ampicillin, a semi-synthetic penicillin antibiotic with a penicillanic acid structure. It is used to treat bacterial infections and is classified under tariff item 2941.10.00 as a penicillin derivative and salt thereof.

Sodium Benzylpenicillin Pharmaceutical Grade

Sodium benzylpenicillin (Penicillin G sodium) is the sodium salt variant offering rapid absorption for emergency antibiotic therapy. This chemically defined penicillin salt has a penicillanic acid structure and is imported as a bulk pharmaceutical ingredient.

Sterile Ampicillin for Injection USP

Sterile ampicillin for injection meeting USP monograph, typically as the trihydrate salt. This chemically defined penicillin derivative is imported as a bulk API for hospital parenteral products, not as a finished dosage form.

Ticarcillin Disodium

Ticarcillin Disodium is a carboxypenicillin antibiotic with a penicillanic acid structure, supplied as a disodium salt for intravenous use against Pseudomonas infections. It falls under tariff item 2941.10.00 as a penicillin salt and derivative.

Dihydrostreptomycin Hydrochloride

Dihydrostreptomycin Hydrochloride is the hydrochloride salt of dihydrostreptomycin, a semi-synthetic aminoglycoside antibiotic derived from streptomycin. As a chemically defined organic salt of a streptomycin derivative, it is classified under tariff item 2941.20.00, which covers streptomycins and their derivatives, including salts thereof.

Dihydrostreptomycin Sesquisulfate

Dihydrostreptomycin Sesquisulfate is a sulfate salt of dihydrostreptomycin, containing 1.5 sulfate molecules per molecule of the antibiotic. It is a chemically defined derivative of streptomycin, used in specialized antibiotic formulations, and falls under tariff item 2941.20.00 as a salt of a streptomycin derivative.

Dihydrostreptomycin Sulfate Powder

Dihydrostreptomycin Sulfate Powder is a hydrogenated derivative of streptomycin, used in veterinary medicine for bacterial infections in livestock. As a salt of a streptomycin derivative, it falls under tariff item 2941.20.00, which covers streptomycins and their derivatives, including salts.

Dihydrostreptomycin Sulfate Powder EP

Dihydrostreptomycin Sulfate Powder EP is a European Pharmacopoeia grade bulk active pharmaceutical ingredient, consisting of the sulfate salt of dihydrostreptomycin. As a chemically defined salt of a streptomycin derivative, it is correctly classified under tariff item 2941.20.00.

Dihydrostreptomycin Sulfate USP

Dihydrostreptomycin Sulfate USP is the sulfate salt of dihydrostreptomycin, a semi-synthetic aminoglycoside antibiotic derived from streptomycin. It is a chemically defined organic compound and qualifies under tariff item 2941.20.00, which covers streptomycins and their derivatives, including salts.

Pharmaceutical Streptomycin Phosphate Salt

Pharmaceutical Streptomycin Phosphate Salt is a phosphate derivative salt of streptomycin, used in specialized formulations requiring pH stability. As a salt of streptomycin, it is classified under tariff item 2941.20.00, which covers streptomycins and their derivatives, including salts thereof.

Streptomycin Hydrochloride BP

Streptomycin Hydrochloride BP is the hydrochloride salt form of the antibiotic streptomycin, meeting British Pharmacopoeia standards for pharmaceutical use. As a salt of streptomycin, it falls under tariff item 2941.20.00, which includes streptomycins and their derivatives, including salts.

Streptomycin Sulfate USP

Streptomycin Sulfate USP is the sulfate salt derivative of streptomycin, a broad-spectrum aminoglycoside antibiotic produced by Streptomyces griseus. As a salt of streptomycin, it is classified under tariff item 2941.20.00, which covers streptomycins and their derivatives, including salts.

Veterinary Grade Dihydrostreptomycin Sulfate

Veterinary Grade Dihydrostreptomycin Sulfate is a bulk antibiotic salt manufactured to veterinary pharmacopeia standards for use in animal health. As a salt of a streptomycin derivative, it is classified under tariff item 2941.20.00, which includes streptomycins and their derivatives and salts.

Veterinary Grade Streptomycin Sesquisulfate

Veterinary Grade Streptomycin Sesquisulfate is a specialized salt derivative of streptomycin with a 2:3 sulfate ratio, used for veterinary antibiotic applications in poultry and swine. As a salt of streptomycin, it falls under tariff item 2941.20.00, which includes streptomycins and their derivatives, including salts.

Chlortetracycline Hydrochloride

Chlortetracycline hydrochloride is a chlorinated tetracycline salt used primarily in veterinary medicine to treat bacterial infections in livestock. As a salt of a tetracycline derivative, it falls squarely within tariff item 2941.30.00, which covers tetracyclines, their derivatives, and salts thereof.

Demeclocycline Hydrochloride

Demeclocycline hydrochloride is a tetracycline derivative salt used to treat hyponatremia and certain bacterial infections. It is classified under tariff item 2941.30.00 as a salt of a tetracycline derivative, consistent with Chapter 29 notes on salts of organic compounds.

Doxycycline Hyclate

Doxycycline hyclate is the hyclate salt of doxycycline, a synthetic tetracycline antibiotic used for acne, respiratory infections, and Lyme disease. As a salt of a tetracycline derivative, it is correctly classified under tariff item 2941.30.00.

Lymecycline

Lymecycline is the calcium salt of demeclocycline, a tetracycline derivative used primarily for acne treatment. It is classified under tariff item 2941.30.00 as a salt of a tetracycline derivative, in line with Chapter 29 classification rules.

Methacycline Hydrochloride

Methacycline hydrochloride is a semi-synthetic tetracycline salt used for urinary tract and respiratory infections. It falls under tariff item 2941.30.00 as a salt of a tetracycline derivative, matching the heading's scope.

Minocycline Hydrochloride

Minocycline hydrochloride is a semi-synthetic tetracycline derivative salt used to treat acne, infections, and rheumatoid arthritis. It is classified under tariff item 2941.30.00 as a salt of a tetracycline derivative, consistent with Chapter 29 notes.

Oxytetracycline Calcium

Oxytetracycline calcium is the calcium salt of oxytetracycline, widely used in veterinary applications for respiratory and systemic infections. As a salt of a tetracycline derivative, it is correctly classified under tariff item 2941.30.00.

Tetracycline Hydrochloride

Tetracycline hydrochloride is the hydrochloride salt of tetracycline, a broad-spectrum antibiotic effective against rickettsia and certain protozoa. It is classified under tariff item 2941.30.00 as a salt of tetracycline, directly matching the heading's description.

Chloramphenicol Acetyl Derivative

> This is an N-acetyl protected intermediate derivative of chloramphenicol, a chemically defined organic compound derived from the parent antibiotic. It is used as a pharmaceutical intermediate in the synthesis of modified antibiotics. Under the Customs Tariff, it qualifies as a derivative of chloramphenicol and is correctly classified under tariff item 2941.40.00.

Chloramphenicol Base Powder

> Pure chloramphenicol base in powdered form, a broad-spectrum antibiotic chemically defined as D-(-)-threo-2,2-dichloro-N-[β-hydroxy-α-(hydroxymethyl)-p-nitrophenethyl]acetamide. It is a separate chemically defined organic compound, meeting the criteria of Chapter 29 Note 1(a). This bulk antibiotic is correctly classified under tariff item 2941.40.00.

Chloramphenicol Eye Ointment Base

> Bulk chloramphenicol powder with a specialized micronized particle size, designated for ophthalmic ointment formulation. It remains a chemically defined antibiotic in bulk form, not a finished preparation. The micronization does not alter its classification as chloramphenicol under tariff item 2941.40.00.

Chloramphenicol Hydrochloride

> Chloramphenicol hydrochloride is a salt form of chloramphenicol, created to enhance aqueous solubility for eye drops and topical formulations. As an inorganic salt of an organic compound, Chapter 29 Note 5(C)(1) directs classification with the parent organic compound. It is correctly classified under tariff item 2941.40.00.

Chloramphenicol Palmitate USP

> Chloramphenicol palmitate is the palmityl ester derivative of chloramphenicol, meeting USP standards for oral suspension preparation. As an ester of an acid-function organic compound with an organic compound, Chapter 29 Note 5(A) classifies it with the compound occurring last in numerical order. It is correctly classified under tariff item 2941.40.00.

Chloramphenicol Research Grade Crystals

> High-purity chloramphenicol crystals (99.5%+) intended for laboratory research and analytical standards. As a separate chemically defined organic compound, it meets Chapter 29 Note 1(a) criteria. Even though not for therapeutic use, it remains chloramphenicol and is classified under tariff item 2941.40.00.

Chloramphenicol Sodium Succinate

> Chloramphenicol sodium succinate is a water-soluble sodium succinate salt derivative used for intravenous administration. As an inorganic salt of an organic compound, Chapter 29 Note 5(C)(1) directs classification with the parent organic compound. It is correctly classified under tariff item 2941.40.00.

Chloramphenicol Succinate Monoester

> Chloramphenicol succinate monoester is a mono-succinic acid ester derivative used for parenteral administration. As an ester of an acid-function organic compound, Chapter 29 Note 5(A) classifies it with the compound occurring last in numerical order. It is correctly classified under tariff item 2941.40.00.

DChloramphenicol (Dextro Form)

> D-chloramphenicol is the D-threo isomer of chloramphenicol, the biologically active enantiomer. As a mixture of isomers of the same organic compound, Chapter 29 Note 1(b) includes it, and it is a chemically defined chloramphenicol derivative. It is correctly classified under tariff item 2941.40.00.