5-(p-Tolyl)oxazole-4-carboxamide CAS 89205-10-7
| CAS No. | 89205-10-7 |
| Molecular Formula | C11H10N2O2 |
| Molecular Weight | 202.21 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.
5-(p-Tolyl)oxazole-4-carboxamide (CAS 89205-10-7), molecular formula C11H10N2O2 and molecular weight 202.21 g/mol, is a CATO reference standard with documented purity and traceability.
5-(p-Tolyl)oxazole-4-carboxamide (C11H10N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.) | 1982 |
| Nitrogen Atoms | 2 |
Related p Standards
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- 1-(p-Tolyl)-1H-pyrazole-4-carboxylic acid (CAS 1053085-48-5)
- 5-[1-o-Tolyl-meth-(Z)-ylidene]-imidazolidine-2,4-dione (CAS 115280-70-1)
- 6-(o-Tolyl)pyrimidine-2,4(1H,3H)-dione (CAS 1309609-29-7)
- 1-(P-tolyl)-1H-imidazole-4-carboxylic acid (CAS 14048-60-3)
- 1-(m-Tolyl)-1H-imidazole-4-carboxylic acid (CAS 952958-67-7)
- 1-(p-Tolyl)pyrimidine-2,4(1H,3H)-dione (CAS 22455-92-1)
- 3-(p-Tolyl)pyrimidine-2,4(1H,3H)-dione (CAS 4260-41-7)
Recommended Standards
- 5-(P-tolyl)furan-2-carboxylic acid (CAS 52938-98-4)
- 5-(p-Tolylamino)-1,2,4-triazin-3-ol (CAS 780755-43-3)
- 5-(Phenoxymethyl)furan-2-carbaldehyde (CAS 685904-18-1)
- 5-(p-Tolyloxy)furan-2-carbaldehyde (CAS 60698-29-5)
- (R)-Methyl 5-bromo-1,2,3,4-tetrahydroisoquinoline-3-carboxylate (CAS 1638677-19-6)
- 1-Phenyl-3-(2-phenylhydrazinyl)pyrrolidine-2,5-dione (CAS 956371-16-7)
- 2-(Tetradecyloxy)aniline (CAS 41710-89-8)
- 4-[(1-adamantylcarbonyl)amino]benzoic acid (CAS 62144-92-7)
- 5-(Benzyloxy)-2-iodo-1,3-dimethylbenzene (CAS 126312-61-6)
- (R)-tert-Butyl 2-((4-aminopiperidin-1-yl)methyl)morpholine-4-carboxylate (CAS 2747919-34-0)
- 4-Ethyl 1-methyl 2-nitroterephthalate (CAS 218590-76-2)
- 4-(4-Chlorophenyl)-2-((4-chlorophenyl)thio)-4-oxobutanoic acid (CAS 301193-87-3)
- 2-Benzoylbenzoic Acid (CAS 85-52-9)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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