4,5,6,7-Tetrahydrooxazolo[4,5-c]pyridine CAS 944903-60-0
| CAS No. | 944903-60-0 |
| Molecular Formula | C6H8N2O |
| Molecular Weight | 124.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,5,6,7-Tetrahydrooxazolo[4,5-c]pyridine (CAS 944903-60-0), molecular formula C6H8N2O and molecular weight 124.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, 4,5,6,7-Tetrahydrooxazolo[4,5-c]pyridine is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 124.14 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O |
| Molecular Weight | 124.14 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Tetrahydrooxazolo Standards
- 4,5,6,7-Tetrahydrooxazolo[5,4-c]pyridine (CAS 1260383-75-2)
- 2-Methyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 886371-60-4)
- 2-Ethyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 885272-75-3)
- 2-Propyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 885273-11-0)
- Methyl 4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine-2-carboxylate (CAS 944897-24-9)
- Ethyl 4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine-2-carboxylate (CAS 1279819-22-5)
- 2-Phenyl-4,5,6,7-tetrahydrooxazolo[4,5-c]pyridine (CAS 944897-09-0)
- 2-Phenyl-4,5,6,7-tetrahydrooxazolo[5,4-c]pyridine (CAS 885272-73-1)
Recommended Standards
- 4,5,6,7-Tetrahydroisoxazolo[4,5-c]pyridine (CAS 253682-42-7)
- 4,5-Diamino-6-methylpyrimidine (CAS 22715-28-2)
- 4,5,6,7-Tetrahydro-2H-[1,2,3]triazolo[4,5-c]pyridine (CAS 933715-70-9)
- 4,6-Dimethyl-3(2H)-pyridazinone (CAS 7007-92-3)
- 2-Bromo-6-(chloromethyl)-3-(difluoromethyl)-5-nitropyridine (CAS 1805340-63-9)
- 2-Bromo-5-(2-methoxyethyl)thiophene (CAS 100650-82-6)
- 4-(Cyanomethyl)-3-fluorobenzonitrile (CAS 1000516-58-4)
- (3AR,6aR)-4-acetylhexahydro-2H-furo[3,2-b]pyrrol-2-one (CAS 107690-56-2)
- 5-((Benzo[d][1,3]dioxol-5-yloxy)methyl)-4-phenyl-4H-1,2,4-triazole-3-thiol (CAS 609792-84-9)
- 1-(1,3-Dimethyl-1H-pyrazol-5-yl)-N-((1-(2,2,2-trifluoroethyl)-1H-pyrazol-3-yl)methyl)methanamine hydrochloride (CAS 1855938-51-0)
- 4-(Azepan-1-yl)but-2-yn-1-amine dihydrochloride (CAS 1396770-32-3)
- 4-Chloro-2-(propan-2-yl)-6-(trifluoromethyl)pyrimidine (CAS 126439-51-8)
- 2-Bromo-3-chloro-6-(difluoromethyl)-4-methoxypyridine (CAS 1805383-69-0)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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