2-Amino-7-fluorobenzoxazole CAS 1266987-58-9
| CAS No. | 1266987-58-9 |
| Molecular Formula | C7H5FN2O |
| Molecular Weight | 152.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 152.13 g/mol gives 2-Amino-7-fluorobenzoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Amino-7-fluorobenzoxazole (CAS 1266987-58-9) is a high-purity analytical reference standard with the molecular formula C7H5FN2O and a molecular weight of 152.13 g/mol.
2-Amino-7-fluorobenzoxazole (C7H5FN2O) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H5FN2O |
| Molecular Weight | 152.13 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-6-fluorobenzoxazole (CAS 1199215-73-0)
- 2-Amino-6-fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1245644-40-9)
- 2-Amino-8-fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1245644-74-9)
- 2-Amino-7-fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1245645-49-1)
- 2-Amino-5-fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1245647-62-4)
- 4-Amino-5-fluoro-2-hydroxybenzonitrile (CAS 129911-04-2)
- 2-Amino-5-fluorobenzoxazole (CAS 1682-39-9)
- 2-Amino-4-fluorobenzoxazole (CAS 1806424-25-8)
Recommended Standards
- 5-Fluoro-3-methoxypicolinonitrile (CAS 1256808-71-5)
- 7-Fluorobenzo[d]oxazol-5-amine (CAS 1268154-08-0)
- 5-Fluoro-2-methoxyisonicotinonitrile (CAS 1256804-96-2)
- 3-Fluoro-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-one (CAS 1256790-95-0)
- 6-Bromo-5-fluoronicotinaldehyde (CAS 1227588-59-1)
- 6,7-Dimethoxy-3-((p-tolylamino)methyl)quinolin-2-ol (CAS 947018-65-7)
- 1-Benzoyl-4-piperidinecarbonyl chloride (CAS 115755-50-5)
- 2-cyclopropyl-2-methoxyethanimidamide hydrochloride (CAS 1955540-94-9)
- 6-(Isopentyloxy)hexane-1-sulfonyl chloride (CAS 1342529-27-4)
- 4-(Diethylamino)-2-(methylthio)-quinazoline-7-carboxylic acid (CAS 1172506-05-6)
- 2-(6-Amino-2-oxobenzo[d]oxazol-3(2h)-yl)acetic acid (CAS 1248358-98-6)
- 2-Chloro-n-[1-(4-ethylphenyl)ethyl]acetamide (CAS 790272-11-6)
- 2-(5-Chloro-1-methyl-1h-imidazol-2-yl)-2,2-difluoroacetic acid hydrochloride (CAS 1423023-90-8)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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