HS Code for Stable isotopes
Stable isotopes and their compounds are classified under HS code 2845.90. Chapter 28 of the Harmonized System deals with inorganic chemicals and precious metal compounds. Heading 2845 is specifically reserved for isotopes other than those of heading 2844 (which covers radioactive isotopes) and their compounds. While specific subheadings exist for heavy water (deuterium oxide) and certain carbon or helium isotopes, 2845.90 serves as the residual category for all other stable isotopes. These substances are chemically identical to their standard elemental counterparts but differ in atomic mass. They are used extensively in medical research, environmental tracing, and industrial applications. The classification applies whether the isotopes are in elemental form or incorporated into inorganic or organic compounds.
Products Included
- Oxygen-18 (O-18) labeled water
- Nitrogen-15 (N-15) compounds
- Sulfur-34 (S-34) isotopes
- Stable isotope-labeled amino acids
- Deuterated solvents (excluding heavy water)
- Boron-10 enriched compounds
Common Misclassification
The most frequent misclassification involves HS code 2844, which is strictly for radioactive isotopes. If an isotope is stable and does not emit ionizing radiation, it must be moved to 2845. Additionally, heavy water (deuterium oxide) must be classified under 2845.10, and carbon-13 or its compounds under 2845.20. Importers often mistakenly use the general chemical code for the non-labeled version of the molecule (e.g., Chapter 29 for organic chemicals), but the presence of an enriched stable isotope mandates classification in 2845.
FAQ
What is the HS code for stable isotopes?
The general HS code for stable isotopes and their compounds (excluding heavy water and specific carbon/helium/lithium isotopes) is 2845.90.
Are isotope-labeled organic compounds classified in Chapter 29?
No, according to the Chapter 28 notes, compounds containing isotopes of heading 2845 are classified in that heading regardless of whether they are organic or inorganic.
Industry
Frequently Asked Questions
What is the HS code for Stable isotopes?
The HS code for Stable isotopes is 284590 (Isotopes other than those of heading no. 2844, 2845.20, 2845.30 or 2845.40; compounds, inorganic or organic, of such isotopes, whether or not chemically defined).
How do I classify Stable isotopes for customs?
Stable isotopes is classified under HS code 284590 — Isotopes other than those of heading no. 2844, 2845.20, 2845.30 or 2845.40; compounds, inorganic or organic, of such isotopes, whether or not chemically defined. This is a 6-digit subheading level code.
Is the HS code for Stable isotopes the same in all countries?
The base HS code 284590 for Stable isotopes is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.