2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde CAS 189563-98-2
| CAS No. | 189563-98-2 |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (CAS 189563-98-2) is a high-purity analytical reference standard with the molecular formula C8H6N2O2 and a molecular weight of 162.15 g/mol.
2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (C8H6N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
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.
As a certified reference material (CRM), 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde 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 | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1190316-28-9)
- 2,3-Dihydro-[1,4]dioxino[2,3-b]pyridine-7-carbonitrile (CAS 1261365-28-9)
- 4,5-Dihydro-1,3,4-benzoxadiazepin-5-one (CAS 144760-61-2)
- 2-Oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carbaldehyde (CAS 1553231-99-4)
- 2,3-Dihydro-[1,4]dioxino-[2,3-c]pyridine-5-carbonitrile (CAS 1823922-75-3)
- 1-Oxo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-6-carbaldehyde (CAS 2847886-20-6)
- 1-phenyl-1,4-dihydro-5H-tetrazol-5-one (CAS 5097-82-5)
- 1-Phenyl-4,5-dihydro-1H-1,2,3,4-tetrazol-5-one (CAS 355154-95-9)
Recommended Standards
- Pyrrolo[1,2-a]pyrazine-1-carboxylic acid (CAS 1895300-97-6)
- 2-Aminopyrido[2,3-b]pyrazin-3(4H)-one (CAS 190144-15-1)
- 3-Methyl-2-nitrobenzonitrile (CAS 1885-77-4)
- 3-Aminopyrido[3,4-b]pyrazin-2(1H)-one (CAS 190144-16-2)
- 2-(((2R,3S,4R)-3,4-Dihydroxy-5-oxotetrahydrofuran-2-yl)methoxy)-2-oxoacetic acid (CAS 778531-86-5)
- 1-Cyclopropyl-5-amino-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (CAS 103772-14-1)
- 5,15-Diphenyl-10,20-di(pyridin-4-yl)porphyrin (CAS 71410-72-5)
- 2-(6-Methyl-2-(p-tolyl)imidazo[1,2-a]pyridin-3-yl)ethan-1-amine (CAS 885272-78-6)
- 1-Acetyl-2,3-dihydro-1H-pyrrolo[3,2-c]pyridin-6(5H)-one (CAS 80862-09-5)
- 3-Amino-7-nitroisoquinoline-4-carboxamide (CAS 515832-81-2)
- 4-Bromo-7-fluoroindole-3-acetic Acid (CAS 1227598-12-0)
- (1S)-1-[(2S)-1-methylpyrrolidin-2-yl]ethanol (CAS 1803485-14-4)
- 2,3-Bis(bromomethyl)thiophene (CAS 13250-86-7)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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