2-(2-nitrophenyl)quinazolin-4(3H)-one CAS 36567-87-0
| CAS No. | 36567-87-0 |
| Molecular Formula | C14H9N3O3 |
| Molecular Weight | 267.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-nitrophenyl)quinazolin-4(3H)-one (CAS 36567-87-0), molecular formula C14H9N3O3 and molecular weight 267.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 2-(2-nitrophenyl)quinazolin-4(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C14H9N3O3 |
| Molecular Weight | 267.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 3 |
Related nitrophenyl Standards
- 2-(4-Nitrophenyl)-5-phenyl-1,3,4-oxadiazole (CAS 1090-82-0)
- 2-(4-Nitrophenyl)-1H-indene-1,3(2H)-dione (CAS 1153-90-8)
- 2-(1-(2-Nitrophenyl)-1H-pyrazol-5-yl)pyrimidine (CAS 1269291-40-8)
- 2-(1-(4-Nitrophenyl)-1H-pyrazol-5-yl)pyrimidine (CAS 1269292-68-3)
- 2-(3-Nitrophenyl)-5-phenyl-1,3,4-oxadiazole (CAS 1874-38-0)
- 2-(3-Nitrophenyl)imidazo[1,2-a]pyridine-3-carbaldehyde (CAS 817172-42-2)
- 2-(4-Nitrophenyl)imidazo[1,2-a]pyridine-3-carbaldehyde (CAS 817172-44-4)
- 2-(4-Nitrophenyl)quinazolin-4(1H)-one (CAS 4765-59-7)
Recommended Standards
- 2-(2H-1,3-Benzodioxol-5-yl)imidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 893612-32-3)
- 2-(1,3-Dioxoisoindolin-2-yl)benzoic acid (CAS 41513-78-4)
- 2-(4-Nitrobenzylidene)benzofuran-3(2H)-one (CAS 83406-08-0)
- 1-Methyl-4-nitroanthracene-9,10-dione (CAS 42431-35-6)
- 2-(3-(3,4-Dimethoxyphenethyl)-5-oxo-1-phenyl-2-thioxoimidazolidin-4-yl)acetic acid (CAS 1008393-63-2)
- 1,1,1-Trifluoropent-4-en-2-ol (CAS 77342-37-1)
- 4-Bromo-3-iodophenol (CAS 202865-84-7)
- Methyl 5-iodo-7-methyl-7H-pyrrolo[2,3-d]pyrimidine-2-carboxylate (CAS 1638763-33-3)
- 2-Chloro-5-fluoropyridine 1-oxide (CAS 405230-79-7)
- (2E)-1-(2-Methylphenyl)-3-(5-methylthiophen-2-yl)prop-2-en-1-one (CAS 1354942-13-4)
- 4,4,5,5-Tetramethyl-2-(3-perylenyl)-1,3,2-dioxaborolane (CAS 950761-81-6)
- 5,6-Dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-8-amine (CAS 87664-84-4)
- 2-Phenyl-6-(trifluoromethyl)nicotinamide (CAS 1214379-25-5)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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