7-Bromo-2,5-dichloroquinazoline CAS 2770331-65-0
| CAS No. | 2770331-65-0 |
| Molecular Formula | C8H3BrCl2N2 |
| Molecular Weight | 277.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 277.93 g/mol gives 7-Bromo-2,5-dichloroquinazoline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Bromo-2,5-dichloroquinazoline (CAS 2770331-65-0) is a high-purity analytical reference standard with the molecular formula C8H3BrCl2N2 and a molecular weight of 277.93 g/mol.
Structurally, 7-Bromo-2,5-dichloroquinazoline (C8H3BrCl2N2) 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 277.93 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C8H3BrCl2N2 |
| Molecular Weight | 277.93 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.) | 2003 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 8-Bromo-4,6-dichloro-quinazoline (CAS 100948-94-5)
- 6-Bromo-4,8-dichloroquinazoline (CAS 100949-31-3)
- 6-Bromo-2,4-dichloroquinazoline (CAS 102393-82-8)
- 6-Bromo-2,7-dichloroquinazoline (CAS 1036757-08-0)
- 6-Bromo-2,3-dichloroquinoxaline (CAS 108229-82-9)
- 5-Bromo-2,3-dichloroquinoxaline (CAS 1092286-00-4)
- 7-bromo-4,6-dichloroquinazoline (CAS 1260847-61-7)
- 5-Bromo-2,4-dichloroquinazoline (CAS 134517-54-7)
Recommended Standards
- 7-Bromo-2,4-dichloroquinazoline (CAS 959237-68-4)
- 7-Bromo-2,6-dichloroquinazoline (CAS 2385181-32-6)
- 6-Bromo-3,4-dichlorocinnoline (CAS 2065250-59-9)
- 8-Bromo-2,4-dichloroquinazoline (CAS 331647-05-3)
- Benzene Series Mix 8 (CAS CATO-MCEM501589-ME)
- 1172891-28-9 1-(4-Methylbenzyl)-1,4-dihydroquinoxaline-2,3-dione MFCD14281824 (CAS 1172891-28-9)
- Methyl 3-fluoro-2-methoxybenzoate (CAS 106428-04-0)
- 1-(3-Bromopropyl)indoline (CAS 768297-88-7)
- 2-Butyl-1,3,2-dioxaborolane-4S,5S-dicarboxylic acid bis(dimethylamino compound)<SC/> (CAS 161344-84-9)
- 7-Chloro-1-(4-(trifluoromethyl)benzyl)indoline-2,3-dione (CAS 85511-68-8)
- 4-Chloro-N-[(E)-2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]aniline (CAS 338978-19-1)
- 2-(2,4-Dichlorophenoxy)-N-(4-methoxyphenyl)propanamide (CAS 284488-00-2)
- n-Cyclopropyl-1-isobutyl-5-oxopyrrolidine-3-carboxamide (CAS 1241198-50-4)
- 263251-78-1 NMG938VJ6T D-3 Tavilermide [USAN:INN] UNII-NMG938VJ6T MIM-D3 MIM-D 3 D 3 (peptide) Tavilermide (CAS 263251-78-1)
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