3-(4-Nitrophenoxy)benzoic acid CAS 27237-21-4
| CAS No. | 27237-21-4 |
| Molecular Formula | C13H9NO5 |
| Molecular Weight | 259.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(4-Nitrophenoxy)benzoic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(4-Nitrophenoxy)benzoic acid (CAS 27237-21-4), molecular formula C13H9NO5 and molecular weight 259.21 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, 3-(4-Nitrophenoxy)benzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 259.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 3-(4-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.) | 1964 |
| Nitrogen Atoms | 1 |
Related Nitrophenoxy Standards
- 4-(4-Nitrophenoxy)benzoic acid (CAS 16309-45-8)
- 4-(2-Nitrophenoxy)benzoic acid (CAS 16309-46-9)
- 2-(4-Nitrophenoxy)benzoic acid (CAS 6082-87-7)
- 3-(2-Nitrophenoxy)benzoic acid (CAS 27237-20-3)
- 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
- 3-(5-(2-Nitrophenyl)furan-2-yl)acrylic acid (CAS 58110-36-4)
- 3-(((Benzyloxy)carbonyl)amino)-2,2-difluoropropanoic acid (CAS 428452-48-6)
- 2-Hydroxy-4-nitrophenyl benzoate (CAS 62350-74-7)
- 4-[5-(2,6-Difluorophenyl)-1,2,4-oxadiazol-3-yl]pyridine (CAS 339104-55-1)
- 2-(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)acetic acid (CAS 32710-88-6)
- Methyl α-D-fucopyranoside (CAS 1128-40-1)
- N-cyclopropyl-2,4-dimethylthiazole-5-carboxamide (CAS 1090827-94-3)
- Palmitoyl Pentapeptide-4 (CAS 214047-00-4)
- 2-(4-Chlorophenyl)pyrrolidine oxalate (CAS 1197232-68-0)
- Valsartan Impurity 98 (CAS 25460-07-5)
- Flufenamic Acid Impurity 2 (CAS 51679-42-6)
- 4-(3,5-Bis(trifluoromethyl)phenoxy)aniline (CAS 57688-35-4)
- 4-[[2-[(3S)-2,6-dioxo-3-piperidyl]-1-oxo-isoindolin-4-yl]amino]-4-oxo-butanoic acid (CAS 2677818-21-0)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
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