5-Methyl-2-(3-nitrophenyl)-4,5-dihydrooxazole CAS 6943-63-1
| CAS No. | 6943-63-1 |
| Molecular Formula | C10H10N2O3 |
| Molecular Weight | 206.20 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.
CATO supplies 5-Methyl-2-(3-nitrophenyl)-4,5-dihydrooxazole (CAS 6943-63-1), a certified reference material (molecular formula C10H10N2O3, MW 206.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H10N2O3, 5-Methyl-2-(3-nitrophenyl)-4,5-dihydrooxazole contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 206.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C10H10N2O3 |
| Molecular Weight | 206.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
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Recommended Standards
- 5-Methoxy-3-phenylimidazolidine-2,4-dione (CAS 24039-17-6)
- 4,5-Dihydro-5-methyl-2-(4-nitrophenyl)oxazole (CAS 6943-64-2)
- 5-Methoxy-3-(o-tolyl)-1,3,4-oxadiazol-2(3H)-one (CAS 62482-24-0)
- 5-Nitro-2-propylbenzo[d]oxazole (CAS 861211-72-5)
- (6-Phenyl-3-pyridyl)methanol (CAS 4634-09-7)
- (2R,3R,4R,5R)-2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-hydroxy-5-((phosphonooxy)methyl)tetrahydrofuran-3-yl acetate (CAS 90290-63-4)
- 6,8-dimethyl-3,4-dihydro-2H-1,4-benzoxazine hydrochloride (CAS 1909337-21-8)
- 6-Phenyl-2,2'-bipyridine (CAS 61633-06-5)
- 4-(2-Carboxyethyl)benzoic Acid (CAS 38628-51-2)
- 5-Amino-2,4-dibromobenzoic acid (CAS 1687856-07-0)
- 2-(Heptyloxy)-6-(1-nitroethyl)quinoline (CAS 1225230-02-3)
- 1-Allylcyclopropylsulfonamide (CAS 669008-28-0)
- 1-(2-Morpholinopropyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1707399-18-5)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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