2-Aminobenzoxazole-5-boronic Acid CAS 1224844-65-8
| CAS No. | 1224844-65-8 |
| Molecular Formula | C7H7BN2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Aminobenzoxazole-5-boronic Acid (CAS 1224844-65-8), molecular formula C7H7BN2O3HCl and molecular weight 214.41 g/mol, is a CATO reference standard with documented purity and traceability.
2-Aminobenzoxazole-5-boronic Acid (C7H7BN2O3HCl) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 2-Aminobenzoxazole-5-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 | C7H7BN2O3 HCl |
| Molecular Weight | 214.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Aminobenzoxazole Standards
- 2-Aminobenzoxazole-6-boronic Acid Pinacol Ester (CAS 1260091-04-0)
- 2-Aminobenzoxazole-6-boronic Acid (CAS 1404480-17-6)
- 6-Aminobenzoxazole-2-methanamine (CAS 1524800-87-0)
- 4-Aminobenzoxazole-2-methanamine (CAS 1551033-41-0)
- 4-Aminobenzoxazole (CAS 163808-09-1)
- 6-Aminobenzoxazole (CAS 177492-52-3)
- 5-Aminobenzoxazole-2-methanamine (CAS 1780283-55-7)
- 2-Aminobenzoxazole-6-carbaldehyde (CAS 1806340-60-2)
Recommended Standards
- Anion Standard - Nitrite (CAS 14797-65-0)
- Ethyl 1,3-dithiolane-2-carboxylate (CAS 20461-99-8)
- Z-Phe-Tyr-aldehyde (CAS 167498-29-5（free）)
- N-(Piperidin-4-yl)-2,3-dihydrobenzo[b][1,4]dioxine-5-carboxamide hydrochloride (CAS 1353980-67-2)
- H-Met-Ala-Ser-OH (CAS 17351-33-6)
- 5-Cyclopropoxy-N-methyl-6-(trifluoromethyl)pyridin-2-amine (CAS 1243394-05-9)
- 4-Bromo-3-methoxybenzyl alcohol (CAS 17100-64-0)
- Osteostatin (1-5) amide (human, bovine, dog, horse, mouse, rabbit, rat) trifluoroacetate salt H-Thr-Arg-Ser-Ala-Trp-NH2 trifluoroacetate salt (CAS 155918-12-0)
- 2-{[(tert-butoxy)carbonyl](2-methylpropyl)amino}acetic acid (CAS 194206-80-9)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com