Isoxazolo[4,5-b]quinoxaline CAS 14094-93-0
| CAS No. | 14094-93-0 |
| Molecular Formula | C9H5N3O |
| Molecular Weight | 171.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Isoxazolo[4,5-b]quinoxaline (C9H5N3O) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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 supplies Isoxazolo[4,5-b]quinoxaline (CAS 14094-93-0), a certified reference material (molecular formula C9H5N3O, MW 171.16 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Isoxazolo[4,5-b]quinoxaline 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 | C9H5N3O |
| Molecular Weight | 171.16 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 DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 3 |
Related Isoxazolo Standards
- Isoxazolo[4,5-g]quinoxaline (CAS 116378-71-3)
- Isoxazolo[3,4-b]quinoxaline (CAS 78172-25-5)
- Isoxazolo[4,3-f]quinoxaline (CAS 27629-48-7)
- Isoxazolo[3,4-c]quinoline (CAS 232-94-0)
- Isoxazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1368353-68-7)
- 4H-Isoxazolo[4,5-e][1,2,4]oxadiazolo[4,5-a]pyrazine (CAS 178472-31-6)
- 4H-Isoxazolo[4,5-e][1,2,4]oxadiazolo[4,5-a]pyrimidine (CAS 178472-32-7)
- 4H-Isoxazolo[4,5-e][1,2,4]oxadiazolo[4,5-a]pyridine (CAS 106990-53-8)
Recommended Standards
- 6-(1h-1,2,4-triaZol-1-yl)pyridine-2-carbonitrile (CAS 1339342-11-8)
- 4-(2H-tetrazol-5-yl)benzonitrile (CAS 14389-10-7)
- 2-(1H-Imidazol-1-yl)pyrimidine-4-carbonitrile (CAS 1330755-54-8)
- 2-(Furan-2-yl)pyrimidine-5-carbonitrile (CAS 1447607-93-3)
- 3-Ethylpyrazolo[1,5-a]pyrimidin-6-amine (CAS 1707713-94-7)
- 1-Oxo-3,4-dihydro-1H-2-benzopyran-3-carboxylic acid (CAS 5762-27-6)
- 5-(1-Chloroethyl)-3-(3-fluorophenyl)-1,2,4-oxadiazole (CAS 1154345-47-7)
- 4-(tert-Butyl)-5-(methylsulfonyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1713174-48-1)
- 3'-Fluoro-[1,1'-biphenyl]-3-sulfonyl chloride (CAS 937668-71-8)
- Imidazo[2,1-b]thiazol-6(5H)-one (CAS 757929-68-3)
- Isavuconazole Impurity 9 (CAS CATO-C4X-12369)
- 1-(Iodomethyl)-3,5-dimethoxybenzene (CAS 66769-61-7)
- 3-(4-Methoxyphenyl)-1,6,6-trimethyl-4,5,6,7-tetrahydro-1H-indazol-4-one (CAS 38127-65-0)
- Des-Leu26-Tirzepatide (CAS CATO-CPTD788947)
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