3-Amino-8-bromo-2-methylquinazolin-4(3H)-one CAS 89258-52-6
| CAS No. | 89258-52-6 |
| Molecular Formula | C9H8BrN3O |
| Molecular Weight | 254.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Amino-8-bromo-2-methylquinazolin-4(3H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Amino-8-bromo-2-methylquinazolin-4(3H)-one (CAS 89258-52-6), a certified reference material (molecular formula C9H8BrN3O, MW 254.08 g/mol) for analytical method development and quality control.
Structurally, 3-Amino-8-bromo-2-methylquinazolin-4(3H)-one (C9H8BrN3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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 254.08 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 | C9H8BrN3O |
| Molecular Weight | 254.08 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 4-Amino-3-bromobenzenesulfonyl fluoride (CAS 108045-28-9)
- 3-Amino-6-bromo-8-methylquinazolin-4(3H)-one (CAS 1092345-74-8)
- 2-Amino-5-bromo-6-methylquinazolin-4(1H)-one (CAS 147149-89-1)
- 2-(3-Amino-1H-pyrazol-5-yl)-4-bromophenol (CAS 1638293-03-4)
- 3-Amino-1-(4-bromophenyl)-1H-pyrazol-5(4H)-one (CAS 16883-20-8)
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Recommended Standards
- 3-Amino-6-bromo-2-methyl-3,4-dihydroquinazolin-4-one (CAS 71822-97-4)
- 3-Bromo-1H-indole-2-carbohydrazide (CAS 441801-35-0)
- 3,5-Difluoro-4-methylphenylboronic acid pinacol ester (CAS 2094504-03-5)
- 3-Bromo-1-methyl-1H-indole-2-carboxylic acid (CAS 499983-77-6)
- 3,4-Dibromopicolinaldehyde (CAS 1289199-53-6)
- 2,2′,4,4′-Tetrabromodiphenyl Ether (CAS 5436-43-1)
- 2-(2-Chlorothiophen-3-yl)-5,5-dimethyl-1,3,2-dioxaborinane (CAS 2096995-68-3)
- 2-Ethoxy-4-fluoroaniline hydrochloride (CAS 850568-36-4)
- Rosuvastatin Impurity 190 (CAS CATO-C4X-1169190)
- 4-Methyl-N-((1-(thiophen-2-yl)cyclopropyl)methyl)benzenesulfonamide (CAS 1207022-75-0)
- n-(3-Bromo-2-methylphenyl)pent-4-enamide (CAS 1376225-07-8)
- 2-Chloro-4-methyl-1-(methylthio)-1,6-dihydropyrimidine (CAS 1823877-06-0)
- 2-(6-Amino-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diyl diacetate (CAS 1093650-30-6)
- Hippocampal Cholinergic Neurostimulating Peptide (CAS 140158-49-2)
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