5,7-Difluorobenzo[d]oxazole CAS 192583-01-0
| CAS No. | 192583-01-0 |
| Molecular Formula | C7H3F2NO |
| Molecular Weight | 155.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,7-Difluorobenzo[d]oxazole is closely related to an amide group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,7-Difluorobenzo[d]oxazole (CAS 192583-01-0) is a high-purity analytical reference standard with the molecular formula C7H3F2NO and a molecular weight of 155.10 g/mol.
Structurally, 5,7-Difluorobenzo[d]oxazole (C7H3F2NO) contains an amide group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 155.10 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5,7-Difluorobenzo[d]oxazole 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 | C7H3F2NO |
| Molecular Weight | 155.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluorobenzo Standards
- 2,5-Difluorobenzo[d]oxazole (CAS 1806318-85-3)
- 5,6-Difluorobenzo[c][1,2,5]oxadiazole (CAS 761427-85-4)
- 5,7-Difluorobenzo[d]oxazol-2-amine (CAS 1247508-62-8)
- 5,6-Difluorobenzo[d]oxazol-2-amine (CAS 1267419-78-2)
- 4,6-Difluorobenzo[d]isoxazol-3-amine (CAS 268734-41-4)
- 5,6-Difluorobenzo[d]isoxazol-3-amine (CAS 280574-98-3)
- 6,7-Difluorobenzo[d]isoxazol-3-amine (CAS 268734-40-3)
- 6,7-Difluorobenzo[d]isoxazol-3(2h)-one (CAS 1223451-39-5)
Recommended Standards
- Allyldichloromethylsilane (CAS 1873-92-3)
- (2R,3S)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid (CAS 1932087-12-1)
- 3,4-Difluoro-5-hydroxybenzonitrile (CAS 186590-38-5)
- (2S,3R)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid (CAS 438477-05-5)
- 2-Ethyl-2-(5-iodopentyl)-1,3-dioxolane (CAS 891270-49-8)
- dimethyl-1H-1,2,3-triazole-4-carbohydrazide (CAS 1862908-11-9)
- (1-(4-(Trifluoromethyl)pyrimidin-2-yl)piperidin-4-yl)methanol (CAS 914636-85-4)
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- 1-Chloro-4-[(1s,4r)-4-butylcyclohexyl]benzene (CAS 139195-58-7)
- 4-(4-Bromophenyl)-2,2-dimethylbutanoic acid (CAS 1267365-75-2)
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- Ethyl 3-(N-butylacetamido)propanoate (CAS 52304-36-6)
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