3-iodo-1H-pyrrolo[2,3-β]pyridine CAS 23616-57-1
| CAS No. | 23616-57-1 |
| Molecular Formula | C7H5IN2 |
| Molecular Weight | 244.03 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.
3-iodo-1H-pyrrolo[2,3-β]pyridine (CAS 23616-57-1), molecular formula C7H5IN2 and molecular weight 244.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5IN2, 3-iodo-1H-pyrrolo[2,3-β]pyridine contains a nitrile group, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 244.03 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).
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.
Physical & Chemical Properties
| Molecular Formula | C7H5IN2 |
| Molecular Weight | 244.03 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 DMSO, DMF, methanol |
| 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.) | 1963 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related iodo Standards
- 6-Iodo-4-azaindole (CAS 1015609-75-2)
- 3-Iodo-1H-pyrrolo[3,2-b]pyridine (CAS 1083181-26-3)
- 2-Iodo-6-methylnicotinonitrile (CAS 1163297-81-1)
- 4-Iodo-6-methylnicotinonitrile (CAS 1211594-67-0)
- 2-Iodo-1H-pyrrolo[3,2-b]pyridine (CAS 1227268-72-5)
- 2-Iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1227269-14-8)
- 2-Iodo-1h-pyrrolo[2,3-c]pyridine (CAS 1227270-26-9)
- 5-Iodo-3-methylpicolinonitrile (CAS 1246383-20-9)
Recommended Standards
- 3-Iodo-1H-indazole (CAS 66607-27-0)
- 3-Iodo-5-azaindole (CAS 877060-47-4)
- 3-Carboxy-4-methylsulfonylphenylboronic acid (CAS 2377608-72-3)
- 3-Iodobenzofuran (CAS 905752-25-2)
- (4-Methylphenethyl)triphenylphosphonium bromide (CAS 63035-49-4)
- (2-Methoxy-1-methylethyl)(1-naphthylmethyl)amine hydrobromide (CAS 1609407-58-0)
- 3-amino-1-(pyridin-2-yl)thiourea (CAS 36273-89-9)
- 7-(4-Ethoxyphenyl)-4-methyl-2-(methylthio)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidine (CAS 338416-18-5)
- 2-(1-Acetylpiperidin-2-yl)phenylboronic acid (CAS 2377587-52-3)
- (S)-4,6,6-trimethylmorpholine-3-carboxylic acid (CAS 783349-45-1)
- 5-Chloro-1H-indol-3-amine (CAS 72561-51-4)
- 1-(2-chlorophenyl)-5-ethyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1154372-81-2)
- (S)-3-(4-((3-bromobenzyl)oxy)-3,5-diiodophenyl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 63570-43-4)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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