4-Chloro-3-ethyl-1H-pyrrolo[2,3-b]pyridine hydrochloride CAS 2126162-66-9
| CAS No. | 2126162-66-9 |
| Molecular Formula | C9H9ClN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-3-ethyl-1H-pyrrolo[2,3-b]pyridine hydrochloride 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.
4-Chloro-3-ethyl-1H-pyrrolo[2,3-b]pyridine hydrochloride (CAS 2126162-66-9), molecular formula C9H9ClN2HCl and molecular weight 217.09 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-3-ethyl-1H-pyrrolo[2,3-b]pyridine hydrochloride (C9H9ClN2HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 217.09 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H9ClN2 HCl |
| Molecular Weight | 217.09 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, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Hydroxy-5,6-dimethyl-3-pyridinecarbonitrile (CAS 72716-80-4)
- 2-Ethyl-2,5-dihydro-4-hydroxy-3-methyl-5-oxo-2-furancarboxylic Acid Methyl Ester (CAS 112026-00-3)
- 5-Fluoro-2-(3-phenylpropoxy)aniline (CAS 946716-75-2)
- Abiraterone Impurity N6 (CAS 853-23-6)
- 1-Chloro-3-ethoxy-5-(trifluoromethoxy)benzene (CAS 1881290-23-8)
- 1-(4-Chlorophenyl)-5-((pyrimidin-2-ylthio)methyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1416346-96-7)
- 3-Bromo-1,1,1-trifluoropropan-2-one oxime (CAS 117341-57-8)
- Bz 423 (CAS 216691-95-1)
- Butyl 2-methylpentanoate (CAS 6297-41-2)
- Galanin-Like Peptide (rat) trifluoroacetate salt (CAS 245114-97-0)
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