4-Chloro-2-(difluoromethoxy)benzo[d]oxazole CAS 1807100-44-2
| CAS No. | 1807100-44-2 |
| Molecular Formula | C8H4ClF2NO2 |
| Molecular Weight | 219.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-2-(difluoromethoxy)benzo[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.
4-Chloro-2-(difluoromethoxy)benzo[d]oxazole (CAS 1807100-44-2) is a high-purity analytical reference standard with the molecular formula C8H4ClF2NO2 and a molecular weight of 219.57 g/mol.
Based on its molecular formula C8H4ClF2NO2, 4-Chloro-2-(difluoromethoxy)benzo[d]oxazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H4ClF2NO2 |
| Molecular Weight | 219.57 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2-Chloro-7-(difluoromethoxy)benzo[d]oxazole (CAS 1803837-68-4)
- 2-Chloro-4-(difluoromethoxy)benzo[d]oxazole (CAS 1803844-65-6)
- 2-Chloro-5-(difluoromethoxy)benzo[d]oxazole (CAS 1804105-57-4)
- 2-Chloro-6-(difluoromethoxy)benzo[d]oxazole (CAS 1806318-51-3)
- 3-(4-Chloro-3-nitro-1h-pyrazol-1-yl)propanoic acid (CAS 1004644-64-7)
- 6-Chloro-1,3-dimethyl-5-nitro-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 1203-25-4)
- (4-Chloro-5-methyl-3-nitro-1H-pyrazol-1-yl)acetic acid (CAS 351996-53-7)
- 2-Chloro-4,6-dimethoxy-5-nitropyrimidine (CAS 478010-54-7)
Recommended Standards
- Methyl 1-(chloromethyl)-4-nitro-1h-pyrazole-3-carboxylate (CAS 1245823-46-4)
- 2-Benzoxazolecarboxylic acid, 5-chloro-, sodium salt (1:1) (CAS 87876-97-9)
- (5-Nitrofuran-2-yl)methyl 2-chloroacetate (CAS 6628-60-0)
- 4-Chloro-2-fluoro-5-nitrobenzoic Acid (CAS 35112-05-1)
- 2,4-Dichloro-6-(hydroxymethyl)phenol (CAS 6641-02-7)
- 1-(5-Chloro-1-methyl-1H-benzo[d]imidazol-2-yl)ethan-1-amine (CAS 1184272-02-3)
- Isothiazole-4-carbaldehyde (CAS 822-54-8)
- N-(5-Thioxo-1H-1,2,4-triazol-4(5H)-yl)acetamide (CAS 69844-24-2)
- 4,5-Dichloro-1h-imidazole-2-carboxylic acid (CAS 64736-53-4)
- 2-Bromo-5-(methylsulfonyl)pyrazine (CAS 1177421-54-3)
- Triphenyl(2-(trimethylsilyl)ethyl)phosphonium iodide (CAS 63922-84-9)
- 2,6-Diamino-6-oxohex-4-ynoic acid (CAS 89020-46-2)
- (E)-4-(3-Bromoprop-1-en-1-yl)benzonitrile (CAS 99154-08-2)
- Antistasin-Related Peptide (CAS 161561-46-2)
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