Benzofuro[6,7-d]isoxazole CAS 211-48-3
| CAS No. | 211-48-3 |
| Molecular Formula | C9H5NO2 |
| Molecular Weight | 159.14 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.
CATO supplies Benzofuro[6,7-d]isoxazole (CAS 211-48-3), a certified reference material (molecular formula C9H5NO2, MW 159.14 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H5NO2, Benzofuro[6,7-d]isoxazole 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 159.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Benzofuro[6,7-d]isoxazole 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 | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Benzofuro Standards
- Benzofuro[5,4-d]oxazole (CAS 115422-75-8)
- Benzofuro[6,5-d]isoxazole (CAS 153965-77-6)
- 2H-Benzofuro[2,3-d][1,2,3]triazole (CAS 33080-67-0)
- 2H-Benzofuro[4,5-d][1,2,3]triazole (CAS 210-91-3)
- Benzofuro[4,5-c]isoxazole (CAS 64399-46-8)
- Benzofuro[4,5-d]oxazole (CAS 50511-87-0)
- Benzofuro[5,6-d]isoxazole (CAS 267-57-2)
- Benzofuro[5,6-d]oxazole (CAS 25885-38-5)
Recommended Standards
- Benzofuro[6,5-d]oxazole (CAS 20419-35-6)
- Benzofuro[6,7-d]oxazole (CAS 25885-39-6)
- Benzofuro[7,6-d]isoxazole (CAS 210-98-0)
- Benzofuro[7,6-d]oxazole (CAS 66037-80-7)
- 2-Chloro-N-(3-methylpyridin-2-yl)acetamide hydrochloride (CAS 1241719-79-8)
- 2-Methyl-N-phenylbut-3-enamide (CAS 80188-12-1)
- N-Hexylbenzene (CAS 1077-16-3)
- 3-Morpholinomethyl-3,4,5-trifluorobenzophenone (CAS 898792-34-2)
- Methyl 3-((trimethylsilyl)methyl)but-3-enoate (CAS 70639-89-3)
- (4E)-4-[2-(4-Fluorophenyl)hydrazin-1-ylidene]-3,4-dihydro-1H-2-benzopyran-1,3-dione (CAS 339021-15-7)
- 2-Phenoxy-N-(thiazol-2-yl)ethane-1-sulfonamide (CAS 1396876-00-8)
- 2-(Naphthalen-1-yl)oxirane (CAS 62222-40-6)
- (1-Cyclopropylethyl)(cyclopropylmethyl)amine (CAS 1019561-65-9)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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