2-Chloro-4-phenyloxazole CAS 445470-08-6
| CAS No. | 445470-08-6 |
| Molecular Formula | C9H6ClNO |
| Molecular Weight | 179.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Chloro-4-phenyloxazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Chloro-4-phenyloxazole (CAS 445470-08-6), molecular formula C9H6ClNO and molecular weight 179.60 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 2-Chloro-4-phenyloxazole 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 | C9H6ClNO |
| Molecular Weight | 179.60 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 4-chloro-5-hydroxy-pyridine-2-carboxylic acid (CAS 1060804-56-9)
- 3-Chloro-1H-indole-2-carbaldehyde (CAS 110912-15-7)
- 3-Chloro-1H-indole-4-carbaldehyde (CAS 1216113-27-7)
- 5-Chloro-3-methyleneisoindolin-1-one (CAS 1239331-77-1)
- 4-Chloro-5-phenyloxazole (CAS 1240617-68-8)
- 2-Chloro-4-formyl-3-methylbenzonitrile (CAS 1297544-91-2)
- 1-Chloro-8-hydroxyisoquinoline (CAS 1374651-67-8)
- 3-Chloro-5-hydroxyisoquinoline (CAS 1374652-47-7)
Recommended Standards
- 2-Chloro-3-oxo-3-phenylpropanenitrile (CAS 22518-21-4)
- 2-Chloro-5-formyl-4-methylbenzonitrile (CAS 2386014-99-7)
- 2-(Cyanomethyl)benzoyl chloride (CAS 690229-60-8)
- 2-Chloro-5-phenyloxazole (CAS 62124-43-0)
- 3-chloronaphthalen-1-amine (CAS 90799-45-4)
- 1-(Carboxymethyl)-6-(furan-2-yl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011400-21-7)
- Quinuclidin-3-amine (CAS 6238-14-8)
- 4-(3,6-Dimethyl-3-heptyl)phenol-3,5-d2 (CAS 1173020-19-3)
- 1-(Tert-butyl) 2-methyl (2R,4S)-4-aminopiperidine-1,2-dicarboxylate (CAS 1638744-02-1)
- 4-(Butylamino)benzonitrile (CAS 4714-65-2)
- 4,5-Dibromo-2-fluorophenacyl chloride (CAS 1807033-73-3)
- 4-Acetamido-8-fluoroquinoline-3-carboxylic acid (CAS 1352524-01-6)
- 3-(2,5-Dichlorophenyl)-2-methyl-1-propene (CAS 93794-96-8)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com