6-Chlorobenzo[d]oxazole CAS 227197-72-0
| CAS No. | 227197-72-0 |
| Molecular Formula | C7H4ClNO |
| Molecular Weight | 153.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-Chlorobenzo[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.
6-Chlorobenzo[d]oxazole (CAS 227197-72-0), molecular formula C7H4ClNO and molecular weight 153.57 g/mol, is a CATO reference standard with documented purity and traceability.
6-Chlorobenzo[d]oxazole (C7H4ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C7H4ClNO |
| Molecular Weight | 153.57 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2021 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorobenzo Standards
- 4-Chlorobenzo[d]isoxazole (CAS 1260783-81-0)
- 6-Chlorobenzo[c]isoxazole (CAS 14313-60-1)
- 4-Chlorobenzo[c]isoxazole (CAS 150079-72-4)
- 4-Chlorobenzo[d]oxazole (CAS 943443-12-7)
- 5-Chlorobenzo[c]isoxazole (CAS 4596-92-3)
- 5-Chlorobenzo[d]isoxazole (CAS 39900-62-4)
- 6-Chlorobenzo[d]isoxazole (CAS 39835-07-9)
- 7-Chlorobenzo[d]isoxazole (CAS 65685-54-3)
Recommended Standards
- 6-Chloroimidazo[1,2-a]pyrimidine (CAS 944906-56-3)
- 6-Chloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 90994-17-5)
- 6-Chloroimidazo[1,2-b]pyridazine (CAS 6775-78-6)
- 6-Chloro-1H-pyrazolo[3,4-b]pyridine (CAS 63725-51-9)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hept-6-ynoic acid (CAS 1097192-05-6)
- Piperazine, 1-[3-chloro-4-(trifluoromethyl)phenyl]- (CAS 888327-52-4)
- ((Dimethylamino)oxy)diphenylphosphine oxide (CAS 83575-89-7)
- 5-Chloro-N-(naphthalen-1-yl)thiophene-2-carboxamide (CAS 330677-99-1)
- 16, (5β)-PREGNEN-3β-OL-20-ONE (CAS 566-59-6)
- LT 175 (CAS 862901-87-9)
- 2-Chloro-6-iodonitrobenzene (CAS 937601-42-8)
- Ethyl (S)-3-Piperidinecarboxylate D-tartrate (CAS 163343-71-3)
- Chromotrope 2B (CAS 548-80-1)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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