7-Bromo-2,4-dichloro-8-methylquinazoline CAS 1388056-03-8
| CAS No. | 1388056-03-8 |
| Molecular Formula | C9H5BrCl2N2 |
| Molecular Weight | 291.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 7-Bromo-2,4-dichloro-8-methylquinazoline 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.
7-Bromo-2,4-dichloro-8-methylquinazoline (CAS 1388056-03-8), molecular formula C9H5BrCl2N2 and molecular weight 291.96 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution, 7-Bromo-2,4-dichloro-8-methylquinazoline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.96 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C9H5BrCl2N2 |
| Molecular Weight | 291.96 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 DMSO, DMF, methanol |
| 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.) | 1991 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-Bromo-2,4-dichloro-8-methylquinazoline (CAS 1039736-74-7)
- 4-Bromo-1-(2,6-dichlorophenyl)-1H-pyrazole (CAS 1215205-65-4)
- 6-Bromo-4-chloro-2-(chloromethyl)quinazoline (CAS 1216816-26-0)
- 8-Bromo-2,4-dichloro-7-methylquinazoline (CAS 1388036-59-6)
- 8-Bromo-2,4-dichloroquinolin-3-amine (CAS 1447949-20-3)
- 3-Bromo-5,8-dichloroquinolin-2-amine (CAS 1447957-99-4)
- 1-Bromo-2-(bromodifluoromethyl)cyclohexane (CAS 14737-09-8)
- 6-Bromo-4,7-dichloro-2-methylquinazoline (CAS 1698026-74-2)
Recommended Standards
- 5-(Trimethylstannyl)isoquinoline 1416437-23-4 (CAS 1416437-23-4)
- 7-Trimethylstannylisoquinoline (CAS 1032315-16-4)
- 25114-58-3 5-tert-butyl-4-({6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-2-(propan-2-yl)-3,4-dihydro-2h-pyran-5-yl}sulfanyl)-2-methylphenyl dimethylsulfamate AR-1G9533 (CAS 25114-58-3)
- 2-bromo-1-(bromomethyl)-3,4-difluorobenzene (CAS 1805523-88-9)
- Ethyl 2-bromo-4-methoxybenzoate (CAS 1208075-63-1)
- 4-Nitrobenzyl morpholine-4-carbodithioate (CAS 1313855-66-1)
- 2-(5-(Bromomethyl)thiophen-2-yl)acetic acid (CAS 200418-14-0)
- 2-(3-Chloro-2-methylpropoxy)butane (CAS 1341423-22-0)
- Ganoderenic acid H (CAS 120462-48-8)
- (5-Fluoro-1H-indol-2-yl)boronic acid (CAS 1202709-15-6)
- 1-((3-Isopropyl-1,2,4-oxadiazol-5-yl)methyl)-1H-pyrrole-3-carboxylic acid (CAS 1502568-34-4)
- 7-Bromo-2-methylbenzofuran (CAS 57547-15-6)
- 1-(Tert-butyl) 3-methyl (3R,4S)-4-(4-fluorophenyl)pyrrolidine-1,3-dicarboxylate (CAS 1820574-66-0)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
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