4-Nitrophenyl benzoate CAS 959-22-8
| CAS No. | 959-22-8 |
| Molecular Formula | C13H9NO4 |
| Molecular Weight | 243.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Nitrophenyl benzoate.
4-Nitrophenyl benzoate (CAS 959-22-8), molecular formula C13H9NO4 and molecular weight 243.21 g/mol, is a CATO reference standard with documented purity and traceability.
4-Nitrophenyl benzoate (C13H9NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4-Nitrophenyl benzoate 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.
Physical & Chemical Properties
| Molecular Formula | C13H9NO4 |
| Molecular Weight | 243.21 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Nitrophenyl Standards
- 2-(4-Nitrophenyl)benzoic acid (CAS 18211-41-1)
- 2-(3-Nitrophenyl)benzoic acid (CAS 37174-74-6)
- 4-(3-Nitrophenyl)benzoic acid (CAS 5737-85-9)
- N-(3-nitrophenyl)isonicotinamide (CAS 68279-91-4)
- 3-Nitrophenyl diethylphosphinate (CAS 94602-52-5)
- 4-Nitrophenyl diethylphosphinate (CAS 7531-39-7)
- 3-(4-Nitrophenyl)-4,5,6,7-tetrahydro-1H-indazole (CAS 56005-82-4)
- Ethyl 3-(2-Nitrophenyl)-3-oxopropanoate 52119-39-8 MFCD03424821 SY122687 (CAS 52119-39-8)
Recommended Standards
- 4'-Nitrobiphenyl-3-carboxylic acid (CAS 729-01-1)
- 4-Phenyl-2,5-pyridinedicarboxylic acid (CAS 59195-28-7)
- 4-Nitrobiphenyl-2-carboxylic acid (CAS 62199-60-4)
- 4-Phenylpyridine-2,6-dicarboxylicAcid (CAS 83463-12-1)
- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N-[(1Z)-{[(4-nitrophenyl)methoxy]amino}methylidene]piperidine-4-carboxamide (CAS 337919-72-9)
- 1-(Difluoromethoxy)-2-nitro-3-(trifluoromethyl)benzene (CAS 1227582-73-1)
- 7-Methoxy-4-methyl-1H-indole-3-carbaldehyde (CAS 1158431-48-1)
- 1-(2,2-Dimethoxyethyl)-3-fluorobenzene (CAS 1303889-62-4)
- 1-Methyl-1H-benzo[d]imidazole-2-carbothioamide (CAS 43102-10-9)
- 1-(5-Chloro-3-methyl-2-pyridinyl)piperazine (CAS 912556-79-7)
- Gizzerosine (CAS 89238-78-8)
- 6-Fluoro-7-methyl-3,4-dihydronaphthalen-1(2H)-one (CAS 837373-15-6)
- 4-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl)morpholine (CAS 1310384-38-3)
- Semaglutide impurity 01 (CAS 1998701-31-7)
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