2-Chloro-5-(5-iodo-1,2-oxazol-3-yl)pyridine CAS 2092543-98-9
| CAS No. | 2092543-98-9 |
| Molecular Formula | C8H4ClIN2O |
| Molecular Weight | 306.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Chloro-5-(5-iodo-1,2-oxazol-3-yl)pyridine (CAS 2092543-98-9), molecular formula C8H4ClIN2O and molecular weight 306.49 g/mol, is a CATO reference standard with documented purity and traceability.
2-Chloro-5-(5-iodo-1,2-oxazol-3-yl)pyridine (C8H4ClIN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2-Chloro-5-(5-iodo-1,2-oxazol-3-yl)pyridine 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 | C8H4ClIN2O |
| Molecular Weight | 306.49 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 |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 8-Chloro-6-iodoquinazolin-4(3H)-one (CAS 101580-72-7)
- 2-Chloro-5-iodoquinazolin-4(3H)-one (CAS 1107694-74-5)
- 2-Chloro-8-iodoquinazolin-4(3H)-one (CAS 1107694-75-6)
- 5-Chloro-6-iodo-1h-pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1246088-64-1)
- 5-Chloro-3-iodo-7H-pyrrolo[2,3-b]pyridine-6-carbaldehyde (CAS 1346447-32-2)
- 6-Chloro-3-iodoimidazo-[1,2-a]pyridine-5-carbaldehyde (CAS 1414864-07-5)
- 7-CHloro-6-iodo-1h-quinazolin-4-one (CAS 1423187-59-0)
- 6-Chloro-3-iodocinnolin-4(1H)-one (CAS 1443292-33-8)
Recommended Standards
- 1,6-Hexanediyl Bismethanethiosulfonate (CAS 56-01-9)
- 2-Chloro-6-iodoquinazolin-4(3H)-one (CAS 438190-96-6)
- 1-(5-Chloro-2-iodophenyl)-1H-tetrazole (CAS 2029462-50-6)
- 2-Chloro-7-iodoquinazolin-4-ol (CAS 744229-16-1)
- tert-Butyl 2-[(E)-(4-bromo-2-fluorophenyl)-methylidene]-1-hydrazinecarboxylate (CAS 1135283-46-3)
- 2-(2,6-Dichlorophenyl)propan-1-amine (CAS 89655-71-0)
- 17-Ethinyl-17-hydroxy-18-methylestra-5(10),9(11)-dien-3-one-3-ethylene ketal 23637-79-8 3-Iodo-1H-pyrrolo[2,3-b]pyridine (CAS 23637-79-8)
- 2-(3-(2-Fluorophenyl)-6-(trifluoromethyl)pyridin-2-yl)acetic acid (CAS 1214348-29-4)
- Roflumilast Impurity 8 (CAS CATO-C4X-10848)
- Abrucomstat (CAS 100502-66-7)
- Tadalafil Impurity 35 (CAS 2169996-11-4)
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- Palmitoyl Tripeptide-1 TFA salt (CAS 2803375-47-3)
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