4-Methyl-2-phenyloxazole-5-carboxamide CAS 51655-70-0
| CAS No. | 51655-70-0 |
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Methyl-2-phenyloxazole-5-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies 4-Methyl-2-phenyloxazole-5-carboxamide (CAS 51655-70-0), a certified reference material (molecular formula C11H10N2O2, MW 202.21 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-Methyl-2-phenyloxazole-5-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 202.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H10N2O2 |
| Molecular Weight | 202.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- Methyl 2-phenyloxazole-5-carboxylate (CAS 106833-83-4)
- 2-Methyl-4-phenyloxazole-5-carboxylic acid (CAS 51143-21-6)
- Methyl 2-phenyloxazole-4-carboxylate (CAS 59171-72-1)
- Methyl 5-phenyloxazole-4-carboxylate (CAS 38061-18-6)
- 2-(5-Methyl-2-phenyloxazole-4-yl)ethanol (CAS 103788-65-4)
- 2-Phenyloxazole-4-carbonyl chloride (CAS 1204-70-2)
- 5-Phenyloxazole-2-carboxylic acid (CAS 1014-14-8)
- 2-Phenyloxazole-5-carboxylic acid (CAS 106833-79-8)
Recommended Standards
- 4-methyl-2-phenylfuran-3-carboxylic acid (CAS 4414-45-3)
- 4-Methyl-3-phenyl-1H-pyrazole-5-carboxylic acid (CAS 879770-33-9)
- 4-Methyl-1-phenyl-1H-pyrazole-3-carboxylic acid (CAS 241798-67-4)
- 4-Methyl-N-(4H-1,2,4-triazol-4-yl)benzamide (CAS 322414-12-0)
- 2-Mercapto-6-phenyl-3-(o-tolyl)thieno[2,3-d]pyrimidin-4(3h)-one (CAS 724704-32-9)
- Benzyl 2-isocyanatoethylcarbamate (CAS 203941-89-3)
- Diethyl (difluoro(phenylselanyl)methyl)phosphonate (CAS 327156-99-0)
- 1,4-Diiodo-2-methylbenzene (CAS 75838-38-9)
- 2-Chloro-6-(chloromethyl)-5-(difluoromethyl)nicotinonitrile (CAS 1805360-95-5)
- 4-(3-(Trifluoromethoxy)phenyl)tetrahydro-2H-pyran-4-carbonitrile (CAS 1358805-02-3)
- 1,2,3-Trifluoro-5-methoxy-4-nitrobenzene (CAS 61471-52-1)
- Ethyl 7-chloro-5-ethylpyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 167371-91-7)
- 6-Bromoisoquinolin-3(2H)-one (CAS 1031927-91-9)
- Heme iron polypeptide(Hematin) (CAS 14875-96-8)
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