4-Bromo-6-methoxy-1H-pyrrolo[2,3-b]pyridine-2-carbaldehyde CAS 1936653-92-7
| CAS No. | 1936653-92-7 |
| Molecular Formula | C9H7BrN2O2 |
| Molecular Weight | 255.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 4-Bromo-6-methoxy-1H-pyrrolo[2,3-b]pyridine-2-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Bromo-6-methoxy-1H-pyrrolo[2,3-b]pyridine-2-carbaldehyde (CAS 1936653-92-7) is a high-purity analytical reference standard with the molecular formula C9H7BrN2O2 and a molecular weight of 255.07 g/mol.
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.
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 | C9H7BrN2O2 |
| Molecular Weight | 255.07 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 5-Bromo-6-methyl-7H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1000340-11-3)
- 6-Bromo-7-methyl-1h-indazole-3-carboxylic acid (CAS 1000340-71-5)
- Methyl 5-Bromo-1H-indazole-6-carboxylate (CAS 1000342-30-2)
- 6-Bromo-5-methylimidazo[1,2-a]pyridine-2-carboxylic Acid (CAS 1000845-67-9)
- 2-(2-Bromo-5-methoxyphenyl)-1,3,4-oxadiazole (CAS 1016843-27-8)
- 6-Bromo-1-methyl-1H-indazole-3-carboxylic acid (CAS 1021859-29-9)
- 6-Bromo-2-methyl-2H-indazole-3-carboxylic Acid (CAS 1021859-33-5)
- 6-Bromo-7-methoxyquinazolin-2(1H)-one (CAS 1036756-12-3)
Recommended Standards
- methyl 2-bromoimidazo[1,2-a]pyridine-7-carboxylate (CAS 1935107-75-7)
- 2,3-Difluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (CAS 1937236-09-3)
- Methyl 6-bromo-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1934399-90-2)
- 2-(Difluoromethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1951411-51-0)
- 1-{6-[(4-bromophenyl)sulfanyl]pyridazin-3-yl}piperidine-3-carboxylic acid (CAS 1112278-50-8)
- Carprofen Impurity 1 (CAS 114041-33-7)
- 1-(4-Bromophenyl)-4-ethylpiperazine (CAS 656257-43-1)
- 2,2-Diisobutylpropane-1,3-diol (CAS 10547-96-3)
- N-(4-Amino-3-methoxyphenyl)methanesulfonamidehydrochloride (CAS 83209-83-0)
- 5-(4-Benzylpiperazin-1-yl)-2-nitroaniline (CAS 23470-43-1)
- Tert-butyl 4-(2-amino-5-methoxyphenyl)piperazine-1-carboxylate (CAS 1373232-41-7)
- 2-(Quinolin-5-yl)propan-2-ol (CAS 1523041-03-3)
- 3-(2,5-Dimethylphenoxy)-N-methylpropan-1-amine (CAS 915924-19-5)
- Semaglutide impurity 106 (CAS CATO-C4X-2226106)
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