Krypton-81
Also known as Krypton Kr 81m, Krypton (81mKr), Krypton (81m Kr)
Key facts
What buyers check first
- CAS number
- 15678-91-8
- Formula
- Kr
- Molar mass
- 80.92 g/mol
- Physical form
- Gas
- HS code
- 284443
- Category
- Metals, alloys and elements
What is Krypton-81?
Plain description, key identifiers and synonyms
Krypton (81mKr) gas is a noble gas molecular entity.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- krypton-81
- CAS number
- 15678-91-8 CAS number cross-checked
- Molecular formula
- Kr
- UNII
- 68QN45K12N
- InChIKey
- DNNSSWSSYDEUBZ-OIOBTWANSA-N
- InChI
- InChI=1S/Kr/i1-3
- Canonical SMILES
- [Kr]
- Isomeric SMILES
- [81Kr]
Synonyms
- Krypton Kr 81m
- Krypton (81mKr)
- Krypton (81m Kr)
- Krypton, isotope of mass 81
- Krypton KR-81M
- Mpi Krypton 81m Generator
- 81Kr radioisotope
- Krypton Kr 81m Gas Generator
- Kr-81 radioisotope
- Kr 81m
- Krypton Kr 81 m Gas Generator
- Krypton-81m
- Krypton, kr-81m
- krypton (81mKr) gas
- Krypton, isotope of mass 81 (metastable)
- 81mKr isotope
- 81Kr isotope
- Isotope:81mKr
- Isotope:81Kr
- MPI Krypton Kr 81m Gas Generator
- 81mKr (isotope)
- 81Kr (isotope)
- Krypton-81 isotope
- Isotope:Krypton-81
- Krypton-81m isotope
Show all 29 synonymsShow fewer synonyms
- Isotope:Krypton-81m
- (~81~Kr)Krypton
- Krypton Kr 81m (USP)
- MPI krypton 81m gas generator (TN)
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Physical form | Gasexp.Measured value |
|---|
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 80.92 g/molcalc.Computed value |
|---|---|
| Exact mass | 80.9166 Dacalc.Computed value |
| LogP (octanol/water) | 0calc.Computed value |
| Topological polar surface area | 0 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 0calc.Computed value |
| Rotatable bonds | 0calc.Computed value |
| Heavy atoms | 1calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Krypton-81 suppliers
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Krypton-81 price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
Regulatory status
Inventories, regulations and trade controls that list this substance
No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Krypton-81 is traded under.
Radioactive elements and isotopes and compounds other than those of subheading 284410…
- Canada32.1%
- Netherlands17.0%
- Germany11.4%
- United States37.8%
- Germany8.4%
- China5.8%
The HS code shown for Krypton-81 is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Similar structures
Nearest neighbours by Morgan fingerprint Tanimoto similarity
Frequently asked questions
Quick answers about Krypton-81, based on the data on this page
What is Krypton-81?
What is the CAS number of Krypton-81?
What is the molecular formula and weight of Krypton-81?
What is Krypton-81 used for?
Is Krypton-81 hazardous?
What is the HS code of Krypton-81?
Where can I buy Krypton-81?
What is the price of Krypton-81?
Guides for buyers
Practical guides that help when you source, ship or handle Krypton-81
- Article, SourcingHow to write an RFQ that gets fast and accurate quotesWhat suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, Trade and logisticsHS codes for chemicals and why they matterHow the Harmonized System classifies chemicals, the chapters that matter, the rules for chemically defined compounds and mixtures, and practical steps to find the right code.Read
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