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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | β | Free |
| π²π½Mexico | Free | β | Free |
| πΊπΈUnited States | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the isomer is not considered a direct derivative of chloramphenicol but of another antibiotic.
Other antibiotic isomers not specifically covered may fall under this residual subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item β and can price the duty on it in the same conversation.
Import Tips & Compliance
β’ > Provide optical rotation data and enantiomeric purity certificate to confirm the D-form
β’ Ensure the CAS number (e.g
β’ 147-64-8 for D-chloramphenicol) is clearly stated
β’ Verify if any special permits are required for importing this active pharmaceutical ingredient
Related Products under Tariff item 2941.40.00
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-[Ξ²-hydroxy-Ξ±-(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.