5-Bromo-3-ethyl-1H-pyrrolo[2,3-b]pyridine CAS 1935333-86-0
| CAS No. | 1935333-86-0 |
| Molecular Formula | C9H9BrN2 |
| Molecular Weight | 225.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-3-ethyl-1H-pyrrolo[2,3-b]pyridine (C9H9BrN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. Halogen substitution raises its density and boiling point; 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).
5-Bromo-3-ethyl-1H-pyrrolo[2,3-b]pyridine (CAS 1935333-86-0), molecular formula C9H9BrN2 and molecular weight 225.09 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9BrN2 |
| Molecular Weight | 225.09 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.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 3-Bromo-5,7-dimethyl-1H-indazole (CAS 1000341-11-6)
- 5-Bromo-3,7-dimethyl-1H-indazole (CAS 1031417-71-6)
- 3-Bromo-4,5-dimethyl-1H-pyrrolo[2,3-b]pyridine (CAS 1082040-66-1)
- 6-Bromo-1,3-dimethyl-1H-indazole (CAS 1095539-84-6)
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- 4-Bromo-1,7-dimethyl-1H-indazole (CAS 1159511-79-1)
Recommended Standards
- 1-(2-Bromoethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 183208-58-4)
- 4-Bromo-3,6-dimethyl-1H-indazole (CAS 1956376-12-7)
- 4-Bromo-3,7-dimethyl-1H-indazole (CAS 1824052-02-9)
- (2-Chlorophenyl)methanesulfonyl chloride (CAS 77421-13-7)
- [2-(4-Bromo-2-fluorophenyl)ethoxy](tert-butyl)dimethylsilane (CAS 924312-10-7)
- 3,7-Dichloro-1,1,1,3,5,5,5,7-octafluoro-4,8-diiodo-5lambda5-octane (CAS 885275-78-5)
- 2,2'-(Methylazanediyl)bis(ethan-1-ol) hydrochloride (CAS 54060-15-0)
- N-(2-Ethylphenyl)-2-((5-(pyridin-3-yl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 332358-19-7)
- 5-Aminoquinoline-6-carbaldehyde (CAS 427375-46-0)
- 3-Bromo-6-methylimidazo[1,2-a]pyridine (CAS 866135-71-9)
- Cefixime Impurity 86 (CAS CATO-C4X-113986)
- (3-(4-Chlorophenoxy)phenyl)methanamine (CAS 154108-30-2)
- p-cresol-methyl-<SUP>13</SUP>C (CAS 121474-53-1)
- Autoinducing Peptide I trifluoroacetate salt (CAS 200010-29-3)
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