3-(4-Methylbenzyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid CAS 951547-65-2
| CAS No. | 951547-65-2 |
| Molecular Formula | C16H13NO4 |
| Molecular Weight | 283.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Methylbenzyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 951547-65-2) is a high-purity analytical reference standard with the molecular formula C16H13NO4 and a molecular weight of 283.28 g/mol.
Structurally, 3-(4-Methylbenzyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (C16H13NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 283.28 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 3-(4-Methylbenzyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H13NO4 |
| Molecular Weight | 283.28 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Methylbenzyl Standards
- 2-((2-Methylbenzyl)thio)-5-(pyridin-4-yl)-1,3,4-oxadiazole (CAS 477857-03-7)
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- 2-((4-Methylbenzyl)thio)-5-phenyl-1,3,4-oxadiazole (CAS 336177-59-4)
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- 2-Methyl-4-(4-methylbenzyl)thiomorpholine-3,5-dione 1,1-dioxide (CAS 344265-06-1)
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Recommended Standards
- 3-(4-Methoxyphenyl)-5-phenyloxazolidine-2,4-dione (CAS 849362-52-3)
- 3-(propan-2-yl)-6-(pyridin-3-yl)pyrido[3,2-d][1,2]oxazole-4-carboxylic acid (CAS 953748-25-9)
- 3-(4-Methoxybenzyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 27507-08-0)
- 3-(Propan-2-yl)-6-(pyridin-4-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 954278-10-5)
- 1,3,5-tricaffeoylquinic acid (CAS 1073897-80-9)
- Methyl 3-acetamido-5-(chlorosulfonyl)benzoate (CAS 1393542-98-7)
- 2-(2-Chlorophenoxy)acetohydrazide (CAS 36304-40-2)
- (4-Chloro-2-fluoro-3-hydroxyphenyl)boronic acid (CAS 1451393-13-7)
- N-Methyl-5-(4-methylbenzyl)-1,3,4-thiadiazol-2-amine (CAS 87410-86-4)
- (4-chlorobutoxy)(1,1-dimethylethyl)dimethyl-Silane (CAS 89031-83-4)
- 5-Chloro-2-(2,2,2-trifluoroethoxy)pyridine (CAS 1258641-42-7)
- (4-Chloro-2-methoxypyrimidin-5-yl)methanol (CAS 2386527-13-3)
- (R)-tert-Butyl (4-oxocyclohex-2-en-1-yl)carbamate (CAS 455330-42-4)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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