Oxazolo[4,5-c]pyridin-2(3H)-one CAS 59851-50-2
| CAS No. | 59851-50-2 |
| Molecular Formula | C6H4N2O2 |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 136.11 g/mol gives Oxazolo[4,5-c]pyridin-2(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Oxazolo[4,5-c]pyridin-2(3H)-one (CAS 59851-50-2), molecular formula C6H4N2O2 and molecular weight 136.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Oxazolo[4,5-c]pyridin-2(3H)-one (C6H4N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 136.11 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H4N2O2 |
| Molecular Weight | 136.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Related Oxazolo Standards
- [1,3]oxazolo[5,4-d]pyrimidin-7-amine (CAS 10325-61-8)
- Oxazolo[5,4-b]pyridin-2(1H)-one (CAS 118767-92-3)
- Oxazolo[4,5-b]pyridin-2(3H)-one (CAS 60832-72-6)
- Oxazolo[5,4-c]pyridin-2(1H)-one (CAS 68523-29-5)
- 5H-Oxazolo[3,2-a]pyridin-5-amine (CAS 201532-32-3)
- Oxazolo[5,4-d]pyrimidin-2(1H)-one (CAS 90889-60-4)
- Oxazolo[5,4-d]pyrimidin-7-ol (CAS 27433-54-1)
- Oxazolo[5,4-c]pyridin-2-amine (CAS 1260890-53-6)
Recommended Standards
- Isoxazolo[5,4-d]pyrimidin-4-amine (CAS 632291-82-8)
- Pyrazine-2,5-dicarbaldehyde (CAS 77666-94-5)
- Isoxazolo[5,4-c]pyridin-3(2H)-one (CAS 847996-42-3)
- pyrazolo[1,5-d][1,2,4]triazin-4(5H)-one (CAS 56976-88-6)
- Ethyl 2-hydroxy-5-iodobenzoate (CAS 15125-84-5)
- 2-{4-[(difluoromethyl)sulfanyl]-3-methoxyphenyl}acetonitrile (CAS 1269151-40-7)
- Methyl 2,6-dichloro-4-(trifluoromethoxy)benzoate (CAS 2221812-05-9)
- 3,4-Dihydropyrimido[5,4-d]pyrimidine (CAS 100047-44-7)
- 4-Amino-5-methyl-1-(tetrahydro-2H-pyran-2-yl)pyrimidin-2(1H)-one (CAS 5580-93-8)
- 4-hydrazinyl-N,N-dimethylbenzene-1-sulfonamide hydrochloride (CAS 119185-57-8)
- (R)-3,6-diamino-6-oxohexanoic acid hydrochloride (CAS 1301706-58-0)
- 2-((4-Chlorobenzyl)thio)-3-methylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 339105-67-8)
- 2-Ethynyl-6-methylpyridine (CAS 30413-58-2)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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