4-(2-Nitrophenoxy)benzoic acid CAS 16309-46-9
| CAS No. | 16309-46-9 |
| Molecular Formula | C13H9NO5 |
| Molecular Weight | 259.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(2-Nitrophenoxy)benzoic acid (CAS 16309-46-9), a certified reference material (molecular formula C13H9NO5, MW 259.21 g/mol) for analytical method development and quality control.
4-(2-Nitrophenoxy)benzoic acid (C13H9NO5) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-(2-Nitrophenoxy)benzoic acid 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 | C13H9NO5 |
| Molecular Weight | 259.21 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.) | 1961 |
| Nitrogen Atoms | 1 |
Related Nitrophenoxy Standards
- 4-(4-Nitrophenoxy)benzoic acid (CAS 16309-45-8)
- 2-(4-Nitrophenoxy)benzoic acid (CAS 6082-87-7)
- 3-(2-Nitrophenoxy)benzoic acid (CAS 27237-20-3)
- 3-(4-Nitrophenoxy)benzoic acid (CAS 27237-21-4)
- 4-(3-Nitrophenoxy)benzoic acid (CAS 99847-17-3)
- 5-(4-Nitrophenoxy)benzo[d][1,3]dioxole (CAS 294856-47-6)
- (4-(4-Nitrophenoxy)phenyl)boronic acid (CAS 1072945-82-4)
- (3-(4-Nitrophenoxy)phenyl)boronic acid (CAS 1072945-93-7)
Recommended Standards
- 4-Nitrophenyl phenyl carbonate (CAS 17175-11-0)
- 4-(2-(5-Nitrofuran-2-yl)vinyl)benzoic acid (CAS 1534-38-9)
- 4-Nitrophenyl 2-hydroxybenzoate (CAS 17374-48-0)
- tert-Butyl 2,4-difluoro-5-nitrobenzoate (CAS 1508810-78-3)
- 1-(4-Methoxy-3,5-dimethylphenyl)-3-methylbutan-1-one (CAS 1443324-53-5)
- 2-(4-Aminophenyl)-2-methylpropanamide (CAS 1229705-49-0)
- 2-Methylcyclohexylmethanol (CAS 2105-40-0)
- Salicylic Acid Impurity 23 (CAS CATO-C4X-190223)
- 5-(Difluoromethyl)-6-oxo-1,6-dihydropyridine-2-carboxamide (CAS 1805309-20-9)
- Benz[a]anthracene-7-methanol (CAS 16110-13-7)
- N-(4-Hydroxyphenyl)thiophene-2-carboxamide (CAS 98902-53-5)
- 1-(2-Nitrophenyl)prop-2-en-1-one (CAS 68165-36-6)
- 1-Methyl-N-(1-phenylethyl)-1h-pyrazol-4-amine (CAS 1153751-01-9)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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