[3-(1,3-Oxazol-5-yl)phenyl]boronic acid CAS 902775-28-4
| CAS No. | 902775-28-4 |
| Molecular Formula | C9H8BNO3 |
| Molecular Weight | 188.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
[3-(1,3-Oxazol-5-yl)phenyl]boronic acid (CAS 902775-28-4), molecular formula C9H8BNO3 and molecular weight 188.98 g/mol, is a CATO reference standard with documented purity and traceability.
[3-(1,3-Oxazol-5-yl)phenyl]boronic acid (C9H8BNO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures [3-(1,3-Oxazol-5-yl)phenyl]boronic 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 | C9H8BNO3 |
| Molecular Weight | 188.98 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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Oxazol Standards
- (4-(Oxazol-2-yl)phenyl)boronic acid (CAS 1082066-51-0)
- (3-(Oxazol-2-yl)phenyl)boronic acid (CAS 1283174-33-3)
- 3-(Oxazol-2-yl)benzoic acid (CAS 473538-18-0)
- 4-(Oxazol-2-yl)benzoic acid (CAS 597561-78-9)
- 4-(Oxazol-4-yl)benzoic acid (CAS 856905-23-2)
- 1-(3-Phenyl-1,2-oxazol-5-yl)ethanol (CAS 14776-02-4)
- 2-(2-Phenyl-1,3-oxazol-4-yl)Ethylamine (CAS 803641-67-0)
- 6-(Oxazol-5-yl)nicotinic acid (CAS 1103394-64-4)
Recommended Standards
- (6-(Furan-3-yl)pyridin-3-yl)boronic acid (CAS 2225175-42-6)
- 2,4-Dichlorofuro[2,3-d]pyrimidine (CAS 1000577-84-3)
- (6-(Furan-2-yl)pyridin-3-yl)boronic acid (CAS 2225177-92-2)
- 1-Bromoethenesulfonyl fluoride (CAS 103020-98-0)
- n-(2-((4-Aminophenyl)amino)-4'-methyl-[4,5'-bithiazol]-2'-yl)acetamide hydrobromide (CAS 472979-27-4)
- 4-Hydrazinyl-6-methylpyrimidin-2(1H)-one (CAS 42351-98-4)
- 5-(2-Fluoro-6-(pyrrolidin-1-yl)pyridin-4-yl)oxazole (CAS 1228665-97-1)
- 5-({1-[(2-chloro-1,3-thiazol-5-yl)methyl]-1H-pyrrol-2-yl}methylidene)-1,3-diazinane-2,4,6-trione (CAS 866131-57-9)
- 3-(2-Methylpyridin-4-yl)pentane-1,5-diol (CAS 865076-08-0)
- (1-(2-Chlorobenzyl)piperidin-4-yl)methanamine dihydrochloride (CAS 1286274-78-9)
- N-(2-methylbutan-2-yl)pyridine-2-carboxamide (CAS 1090645-34-3)
- 2-(((2,6-Dichlorobenzyl)oxy)methyl)pyrrolidine hydrochloride (CAS 1289388-68-6)
- 1-(2,2-Difluorovinyl)-4-methoxybenzene (CAS 1608-24-8)
- Peptide-GMF (CAS CATO-CPTD788469)
Why CATO?
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