5-Bromo-1-chloroisoquinoline CAS 34551-41-2
| CAS No. | 34551-41-2 |
| Molecular Formula | C9H5BrClN |
| Molecular Weight | 242.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-1-chloroisoquinoline is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Bromo-1-chloroisoquinoline (CAS 34551-41-2), a certified reference material (molecular formula C9H5BrClN, MW 242.50 g/mol) for analytical method development and quality control.
Structurally, 5-Bromo-1-chloroisoquinoline (C9H5BrClN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 242.50 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Bromo-1-chloroisoquinoline 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 | C9H5BrClN |
| Molecular Weight | 242.50 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 methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 8-Bromo-3-chloroisoquinoline (CAS 1029720-63-5)
- 7-Bromo-3-chloroisoquinoline (CAS 1029720-65-7)
- 5-Bromo-3-chloroisoquinoline (CAS 1029720-67-9)
- 6-Bromo-7-chloroisoquinoline (CAS 1036712-54-5)
- 2-Bromo-7-chloroquinoline (CAS 1044764-18-2)
- 6-Bromo-2-chloronicotinic acid (CAS 1060815-67-9)
- 8-Bromo-5-chloroquinoline (CAS 1154741-20-4)
- 1-Bromo-6-chloroisoquinoline (CAS 1196146-81-2)
Recommended Standards
- 4-Bromo-7-chloroisoquinoline (CAS 953421-72-2)
- 5-Bromo-2-chloroquinoline (CAS 99455-13-7)
- 4-Bromo-2-chloroquinoline (CAS 83674-64-0)
- 5-Bromo-8-chloroisoquinoline (CAS 956003-79-5)
- 3-(3-Nitrophenyl)-1-phenyl-1h-pyrazole-4-carbaldehyde (CAS 333327-63-2)
- 4-Nitro-1H-imidazole-1-carbonitrile (CAS 716316-19-7)
- 4-((2-Chlorophenyl)diazenyl)-3-hydroxy-N-phenyl-2-naphthamide (CAS 6410-26-0)
- Tetramethylrhodamine ethyl ester perchlorate (CAS 115532-52-0)
- 2-(Difluoromethyl)-4-iodo-3-methylpyridine-5-carboxylic acid (CAS 1805605-71-3)
- Nabumetone Impurity 7 (CAS 56894-99-6)
- 5-Chloro-2,3-difluorophenylboronic acid (CAS 2377610-07-4)
- 4-((2-(Cyclohex-2-en-1-yl)ethyl)amino)butan-1-ol (CAS 923526-83-4)
- 2,4-Dibromo-3,6-difluorothiophenol (CAS 1806327-11-6)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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