2H-Oxazolo[5,4-e]indazole CAS 42318-51-4
| CAS No. | 42318-51-4 |
| Molecular Formula | C8H5N3O |
| Molecular Weight | 159.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2H-Oxazolo[5,4-e]indazole (CAS 42318-51-4), a certified reference material (molecular formula C8H5N3O, MW 159.14 g/mol) for analytical method development and quality control.
2H-Oxazolo[5,4-e]indazole (C8H5N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 2H-Oxazolo[5,4-e]indazole 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 | C8H5N3O |
| 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 DMSO, DMF, methanol |
| Stability | 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.) | 1969 |
| Nitrogen Atoms | 3 |
Related H Standards
- 2H-Oxazolo[4,5-g]indazole (CAS 21274-68-0)
- 7H-Oxazolo[5,4-e]indazole (CAS 21274-69-1)
- 2H-Oxazolo[5,4-g]indole (CAS 117025-06-6)
- 2H-Oxazolo[4,5-e]indole (CAS 77482-56-5)
- 2H-Oxazolo[4,5-e]isoindole (CAS 42540-48-7)
- 2H-Oxazolo[4,5-f]indole (CAS 70814-40-3)
- 2H-Oxazolo[4,5-f]isoindole (CAS 42394-83-2)
- 2H-Oxazolo[5,4-e]indole (CAS 70814-39-0)
Recommended Standards
- 2-Hydroxy-1h-pyrrolo[3,2-b]pyridine-3-carbonitrile (CAS 32501-04-5)
- 2H-Isoxazolo[5,4-b]pyrrolo[3,4-d]pyridine (CAS 407624-71-9)
- 2-Methyl-3-oxomorpholine-2-carboxylic acid (CAS 2647942-36-5)
- 2H-Isoxazolo[5,4-b]pyrrolo[2,3-e]pyridine (CAS 952702-87-3)
- 2,3-Dimethoxy-N-((1-methylpyrrolidin-2-yl)methyl)-5-(N-methylsulfamoyl)benzamide (CAS 74651-64-2)
- (2R,3S,4S)-2-(Hydroxymethyl)pyrrolidine-3,4-diol hydrochloride (CAS 101399-04-6)
- 3-(Bromomethyl)-2,2,5,5-tetramethyloxolane (CAS 1505987-56-3)
- 5-Fluoroisophthalonitrile (CAS 453565-55-4)
- 2-{4-oxo-4H,5H-furo[3,2-c]pyridin-5-yl}acetic acid (CAS 1936329-25-7)
- 4-Bromo-1-(2-methoxyethyl)-3,5-dimethyl-1h-pyrazole (CAS 1342761-60-7)
- 3-(3-Methoxyphenyl)-1-(4-(trifluoromethyl)phenyl)propan-1-one (CAS 898775-00-3)
- (3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)methanol (CAS 5372-40-7)
- 4-Bromo-N-(piperidin-1-yl)benzenesulfonamide (CAS 64268-85-5)
- Neuropeptide K (human, porcine, rat) trifluoroacetate salt (CAS 96827-05-3)
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