14265-83-9 Tungsten, isotope of mass 186 Tungsten-186 186W CAS 14265-83-9
| CAS No. | 14265-83-9 |
| Molecular Formula | [186W] |
| Molecular Weight | 185.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
14265-83-9 Tungsten, isotope of mass 186 Tungsten-186 186W (CAS 14265-83-9) is a high-purity analytical reference standard with the molecular formula [186W] and a molecular weight of 185.95 g/mol.
14265-83-9 Tungsten, isotope of mass 186 Tungsten-186 186W ([186W]) contains an inorganic composition. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | [186W] |
| Molecular Weight | 185.95 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1961 |
Related Tungsten Standards
- 14265-82-8 Tungsten, isotope of mass 184 Tungsten-184 184W (CAS 14265-82-8)
- 14265-80-6 Tungsten, isotope of mass 182 Tungsten-182 182W (CAS 14265-80-6)
- 14265-79-3 Tungsten, isotope of mass 180 Tungsten-180 180W (CAS 14265-79-3)
- Tungsten boride (WB) (CAS 12007-09-9)
- Tungsten carbide (CAS 12070-12-1)
- Tungsten(IV) oxide (CAS 12036-22-5)
- Tungsten(IV) oxide (99.9+%-W) (WO2.9 Blue Sub-oxide) (CAS 12037-58-0)
- Tungsten(VI) oxide (CAS 1314-35-8)
Recommended Standards
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- 5-MEthyl-4-piperidin-2-ylpyrimidine dihydrochloride (CAS 1380777-57-0)
- Ethyl 2-{N'-[(1E)-[4-(dimethylamino)phenyl]methylidene]hydrazinecarbonyl}-3-{[3-(trifluoromethyl)phenyl]carbamoyl}cyclopropane-1-carboxylate (CAS 341967-55-3)
- tert-Butyl 4-(3-aminoazetidin-1-yl)piperidine-1-carboxylate dihydrochloride (CAS 1179361-59-1)
- 2-[(4-chlorophenyl)methyl]-2-methylpyrrolidine hydrochloride (CAS 1909327-53-2)
- Potassium (2-Methoxyethyl)trifluoroborate (CAS 1408168-69-3)
- 3-Fluoro-5-(tert-butoxy)phenylboronic acid (CAS 850592-98-2)
- Clenisohexerol hydrochloride (CAS 37158-48-8)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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