2-(o-Tolyl)oxazolo[4,5-b]pyridine CAS 52333-63-8
| CAS No. | 52333-63-8 |
| Molecular Formula | C13H10N2O |
| Molecular Weight | 210.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(o-Tolyl)oxazolo[4,5-b]pyridine (CAS 52333-63-8) is a high-purity analytical reference standard with the molecular formula C13H10N2O and a molecular weight of 210.23 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2-(o-Tolyl)oxazolo[4,5-b]pyridine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 210.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H10N2O |
| Molecular Weight | 210.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
Related o Standards
- 7-(p-Tolyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 160290-38-0)
- 2-(p-Tolyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 62135-59-5)
- 2-(p-Tolyl)oxazolo[4,5-b]pyridine (CAS 52333-87-6)
- 3-(p-Tolyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 779325-81-4)
- 3-(p-Tolyl)-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62052-17-9)
- O-tolyl(p-tolyl)methanone (CAS 1140-16-5)
- m-Tolyl(p-tolyl)methanone (CAS 13152-94-8)
- 1-(p-Tolyl)-1-cyclopentanecarboxylic 1-p-tolylcyclopentanecarboxylic acid 80789-75-9 (CAS 80789-75-9)
Recommended Standards
- 2-(Methyl(3-nitrobenzyl)amino)ethanol (CAS 769110-40-9)
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- 2-(Ethylamino)-2-oxoethyl 1-methyl-1H-pyrrole-2-carboxylate (CAS 796990-95-9)
- 2-(pyridin-4-ylmethoxy)benzonitrile (CAS 911832-39-8)
- Ethyl 5-(tributylstannyl)nicotinate (CAS 405938-98-9)
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- (3-Bromobicyclo[1.1.1]pentan-1-yl)methyl 4-methylbenzenesulfonate (CAS 137741-19-6)
- (Z)-N-(4-Ethylbenzo[d]thiazol-2-yl)-3-phenylacrylamide (CAS 1321913-57-8)
- 2-Amino-3-chloro-5-methoxynaphthalene-1,4-dione (CAS 95684-17-6)
- Orforglipron impurity 143 (CAS CATO-C4X-3234143)
- 4-[(2-Methylphenyl)carbonyl]benzonitrile (CAS 913485-57-1)
- 2-Methyl-N-(2-(pyridin-2-yl)ethyl)propan-1-amine (CAS 6311-96-2)
- (4,9-Dimethyl-5,8-diazadodeca-2,11-dione-3,9-dienato)nickel (CAS 13878-48-3)
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