2158-91-0 2-benzoyl-4-nitrobenzoic acid DTXSID80357867 CAS 2158-91-0
| CAS No. | 2158-91-0 |
| Molecular Formula | C14H9NO5 |
| Molecular Weight | 271.22 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 2158-91-0 2-benzoyl-4-nitrobenzoic acid DTXSID80357867.
CATO supplies 2158-91-0 2-benzoyl-4-nitrobenzoic acid DTXSID80357867 (CAS 2158-91-0), a certified reference material (molecular formula C14H9NO5, MW 271.22 g/mol) for analytical method development and quality control.
Structurally, 2158-91-0 2-benzoyl-4-nitrobenzoic acid DTXSID80357867 (C14H9NO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 271.22 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C14H9NO5 |
| Molecular Weight | 271.22 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 4-Bromo-3-(2-bromophenyl)-5-methyl-1H-pyrazole (CAS 1239128-43-8)
- 1-Ethyl-1H-1,2,4-triazole-5-carboxamide (CAS 106535-38-0)
- 1-((Benzyloxy)methyl)pyrimidine-2,4(1H,3H)-dione (CAS 80140-15-4)
- 4-chloro-6-phenyl-2-(thiophen-2-yl)pyrimidine (CAS 1155152-85-4)
- Naphazoline Impurity 10 (CAS CATO-C4X-144010)
- 4-[6-Methyl-2-(propan-2-yl)pyrimidin-4-yl]morpholine (CAS 383146-31-4)
- N,N-dimethyl-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxamide (CAS 338754-80-6)
- Tau Peptide (268-282) trifluoroacetate salt (CAS 330456-37-6)
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