2-Iodo-4-nitropyridine CAS 89283-69-2
| CAS No. | 89283-69-2 |
| Molecular Formula | C5H3IN2O2 |
| Molecular Weight | 249.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2-Iodo-4-nitropyridine (CAS 89283-69-2), molecular formula C5H3IN2O2 and molecular weight 249.99 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H3IN2O2, 2-Iodo-4-nitropyridine contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 249.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H3IN2O2 |
| Molecular Weight | 249.99 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Iodo Standards
- 4-Iodo-2-nitropyridine (CAS 1003711-88-3)
- 4-Iodo-3-nitropyridine (CAS 1003711-92-9)
- 5-Iodo-2-nitropyridine (CAS 125261-86-1)
- 2-Iodo-3-nitropyridine (CAS 209286-96-4)
- 3-Iodo-2-nitropyridine (CAS 54231-34-4)
- 3-Iodo-4-nitropyridine (CAS 89283-70-5)
- 3-Iodo-5-nitropyridine (CAS 25391-55-3)
- 2-Iodo-6-methoxyphenol (CAS 111726-46-6)
Recommended Standards
- 2-Methylpentanedial (CAS 7420-87-3)
- (4-Bromophenyl)(methyl)selane (CAS 40400-25-7)
- (2-Bromophenyl)(methyl)selane (CAS 14403-31-7)
- 3-Iodopyrazine-2-carboxylic Acid (CAS 212471-40-4)
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- Semaglutide impurity 45 (CAS CATO-C4X-222645)
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