4-Bromo-1-chloroisoquinoline CAS 66728-98-1
| CAS No. | 66728-98-1 |
| Molecular Formula | C9H5BrClN |
| Molecular Weight | 242.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Bromo-1-chloroisoquinoline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
4-Bromo-1-chloroisoquinoline (CAS 66728-98-1) is a high-purity analytical reference standard with the molecular formula C9H5BrClN and a molecular weight of 242.50 g/mol.
4-Bromo-1-chloroisoquinoline (C9H5BrClN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1976 |
| 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
- 3-Bromo-8-chloroquinoline (CAS 205111-94-0)
- 4-Bromo-2-chloroquinoline (CAS 83674-64-0)
- 3-Bromo-1-chloroisoquinoline (CAS 630422-00-3)
- 4-Bromo-7-chloroisoquinoline (CAS 953421-72-2)
- Thiane-4-thiol (CAS 787536-05-4)
- 3-(6-methoxynaphthalen-2-yl)prop-2-enenitrile (CAS 1807920-95-1)
- 1h,2h,3h,4h-Cyclopenta[b]indole-5-carboxylic acid (CAS 422312-00-3)
- 5-Cyclopentylpentan-2-one (CAS 317808-01-8)
- 2-Bromo-4-isopropoxy-1-methylbenzene (CAS 1254062-68-4)
- 2-bromo-5-[3-(trifluoromethoxy)phenyl]-1,3,4-thiadiazole (CAS 532401-06-2)
- (6-Amino-5-fluoropyridin-3-yl)boronic acid (CAS 1310404-43-3)
- 2-(2-chlorophenyl)-1-(1,3-thiazol-4-yl)ethan-1-one (CAS 1522120-95-1)
- 6-Bromo-2,8-dimethylimidazo[1,2-a]pyrazine (CAS 1845754-40-6)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com