D-Arabinose [U-13C5] Uniformly Labeled
D-Arabinose [U-13C5] Uniformly Labeled is a chemically pure sugar with all five carbons replaced by carbon-13 at 98% enrichment. It is used in advanced metabolomics and flux analysis by mass spectrometry or NMR. As an isotopically substituted pure sugar, it falls under this tariff item.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | 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 carbon-13 labeling is deemed an isotope compound
Isotopes and their compounds are classified in heading 2845, which may override Chapter 29.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include isotopic enrichment data and chemical purity analysis in the import documentation
• Confirm the product is not a radioactive isotope, which would fall under Chapter 28
• Explain the research application to justify the high-value classification
Related Products under Tariff item 2940.00.00
Benzyl Alpha-D-Mannopyranoside
Benzyl Alpha-D-Mannopyranoside is a chemically pure sugar ether with a benzyl group attached to mannose. It is used as a protecting group reagent in oligosaccharide synthesis. As a sugar ether not covered by headings 2937 to 2939, it falls under this tariff item.
D-Arabinose 99+% ACS Reagent
D-Arabinose 99+% ACS Reagent is a high-purity aldopentose sugar meeting American Chemical Society specifications. It is used in analytical chemistry and organic synthesis as a starting material or standard. As a chemically pure sugar not excluded by the tariff item, it is classified here.
D-Arabinose Anhydrous Crystals
D-Arabinose Anhydrous Crystals are chemically pure sugar crystals with controlled water content below 0.5%. They are used in moisture-sensitive carbohydrate chemistry applications. This product qualifies as a chemically pure sugar under the tariff item.
D-Arabinose Cell Culture Grade
D-Arabinose Cell Culture Grade is a chemically pure sugar tested for use in mammalian cell growth media. It has low endotoxin levels and is certified pyrogen-free for biological research. As a pure sugar for laboratory use, it falls under this tariff item.
D-Arabinose Powder
D-Arabinose Powder is a chemically pure aldopentose sugar supplied as a white crystalline powder for laboratory research. It is epimeric at C-2 with D-ribose and used in various biochemical applications. This product is classified as a chemically pure sugar under the tariff item.
D-Arabinose USP Reference Standard
D-Arabinose USP Reference Standard is a pharmaceutical-grade sugar certified for analytical method validation and quality control. It meets USP specifications for purity and performance. As a chemically pure sugar, it is classified under this tariff item.