Thallium hydrotris[3-(2-pyridyl)pyrazol-1-yl]borate CAS 165257-90-9
| CAS No. | 165257-90-9 |
| Molecular Formula | C24H18N9Tl |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Thallium hydrotris[3-(2-pyridyl)pyrazol-1-yl]borate is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Thallium hydrotris[3-(2-pyridyl)pyrazol-1-yl]borate (CAS 165257-90-9) is a high-purity analytical reference standard with the molecular formula C24H18N9TlH3BO3 and a molecular weight of 698.68 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Thallium hydrotris[3-(2-pyridyl)pyrazol-1-yl]borate is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 698.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C24H18N9Tl H3BO3 |
| Molecular Weight | 698.68 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 9 |
Related Thallium Standards
- Thallium(I) nitrate (CAS 10102-45-1)
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- Thallium(III) nitrate trihydrate (CAS 13453-38-8)
- Thallium(I) hexafluoroacetylacetonate (CAS 15444-43-6)
- Thallium hydrotris(indazol-2-yl)borate (CAS 162978-03-2)
- Thallium(I) ethoxide (CAS 20398-06-5)
- Thallium(I) 2-ethylhexanoate, 99.8% (metals basis) (CAS 210578-56-6)
Recommended Standards
- 2-((4-Acetyl-N-methylphenyl)sulfonamido)-N-(3-chloro-4-fluorophenyl)acetamide (CAS 852846-92-5)
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- (4E)-3-(Chloromethyl)-4-(2-fluorobenzylidene)-isoxazol-5(4H)-one (CAS 1142199-21-0)
- (2-Trimethylstannanyl-phenyl)-carbamic acid tert-butyl ester (CAS 114552-32-8)
- 4-Bromo-2-chloro-5-(trifluoromethyl)acetophenone (CAS 1805186-01-9)
- 1-Benzyl-5-bromo-7-methylindoline-2,3-dione (CAS 825599-56-2)
- N-Hydroxypyridazine-4-carboxamide (CAS 96054-52-3)
- 4,6-Diimino-5-methyltetrahydropyrimidine-2(1H)-thione (CAS 857412-53-4)
- N-(4-Bromo-3-cyclopropoxyphenyl)methanesulfonamide (CAS 1243457-07-9)
- Xenopsin-Related Peptide 2 (XP-2) (H-9340.0005) (CAS 117442-29-2)
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