1,2-BENZISOXAZOL-3(2H)-ONE 1,2-BENZISOXAZOL-3-OL 1,2-BENZOXAZOL-3-OL 21725-69-9 3-HYDROXY-1,2-BENZISOXAZOLE AS06287 benzo[d]isoxazol-3-ol CAS 21725-69-9
| CAS No. | 21725-69-9 |
| Molecular Formula | C7H13NO2 |
| Molecular Weight | 143.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,2-BENZISOXAZOL-3(2H)-ONE 1,2-BENZISOXAZOL-3-OL 1,2-BENZOXAZOL-3-OL 21725-69-9 3-HYDROXY-1,2-BENZISOXAZOLE AS06287 benzo[d]isoxazol-3-ol is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1,2-BENZISOXAZOL-3(2H)-ONE 1,2-BENZISOXAZOL-3-OL 1,2-BENZOXAZOL-3-OL 21725-69-9 3-HYDROXY-1,2-BENZISOXAZOLE AS06287 benzo[d]isoxazol-3-ol (CAS 21725-69-9), a certified reference material (molecular formula C7H13NO2, MW 143.18 g/mol) for analytical method development and quality control.
The molecular framework of 1,2-BENZISOXAZOL-3(2H)-ONE 1,2-BENZISOXAZOL-3-OL 1,2-BENZOXAZOL-3-OL 21725-69-9 3-HYDROXY-1,2-BENZISOXAZOLE AS06287 benzo[d]isoxazol-3-ol (C7H13NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 1,2-BENZISOXAZOL-3(2H)-ONE 1,2-BENZISOXAZOL-3-OL 1,2-BENZOXAZOL-3-OL 21725-69-9 3-HYDROXY-1,2-BENZISOXAZOLE AS06287 benzo[d]isoxazol-3-ol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H13NO2 |
| Molecular Weight | 143.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related BENZISOXAZOL Standards
- 4-Methyl-1,2-benzisoxazol-3(2H)-one (CAS 1195552-73-8)
- 5-Methyl-1,2-benzisoxazol-3(2H)-one (CAS 65685-49-6)
- 6-Methyl-1,2-benzisoxazol-3-ol (CAS 66571-26-4)
- 1,2-Benzisoxazol-6-ol (CAS 65685-55-4)
- 1,2-Benzisoxazol-3-amine (CAS 36216-80-5)
- 1,2-Benzisoxazol-3-ylacetyl chloride 84637-43-4 (CAS 84637-43-4)
- 2-(3-Phenyl-2,1-benzisoxazol-5-yl)-2H-tetrazole-5-carboxylic Acid (CAS 951896-38-1)
Recommended Standards
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