4-(3-Nitrophenoxy)pyridine CAS 4783-89-5
| CAS No. | 4783-89-5 |
| Molecular Formula | C11H8N2O3 |
| Molecular Weight | 216.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(3-Nitrophenoxy)pyridine (CAS 4783-89-5), molecular formula C11H8N2O3 and molecular weight 216.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-(3-Nitrophenoxy)pyridine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 216.19 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).
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 | C11H8N2O3 |
| Molecular Weight | 216.19 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Nitrophenoxy Standards
- 2-(3-Nitrophenoxy)pyridine (CAS 28355-48-8)
- 3-(3-Nitrophenoxy)pyridine (CAS 28232-52-2)
- 4-(2-NITROPHENOXY)PYRIDINE (CAS 4783-85-1)
- 4-(4-nitrophenoxy)pyridine (CAS 4783-83-9)
- 2-(4-Nitrophenoxy)pyrimidine (CAS 181801-29-6)
- 2-((4-Nitrophenoxy)methyl)furan (CAS 91092-88-5)
- 3-(4-Nitrophenoxy)propane-1,2-diol (CAS 34211-48-8)
- 4-((2-Nitrophenoxy)methyl)isoxazole (CAS 872611-08-0)
Recommended Standards
- 4-(2-Pyrimidinyloxy)benzenecarboxylic acid (CAS 855423-33-5)
- 4-(5-Formylfuran-2-yl)benzoic acid (CAS 39245-15-3)
- 4-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzamide (CAS 98697-26-8)
- 4-(5-Hydroxypyrimidin-2-yl)benzoic acid (CAS 2056921-34-5)
- (R)-tert-Butyl 3-(N-methoxy-N-methylcarbamoyl)piperidine-1-carboxylate (CAS 884510-86-5)
- Ethyl 2-(7-amino-3,4-dihydronaphthalen-1(2H)-ylidene)acetate (CAS 2172621-47-3)
- Ethyl 6-amino-2-chloronicotinate (CAS 2360461-42-1)
- 1-amino-N-(4-fluorophenyl)cyclopropane-1-carboxamide hydrochloride (CAS 1803600-13-6)
- 1-(3-Chlorobenzyl)-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbonitrile (CAS 478080-28-3)
- 3-Ethyl-7-methoxy-5,8-dimethyl-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 114888-10-7)
- methyl 1,3-benzothiazole-6-carboxylate (CAS 73931-63-2)
- Methyl 5-(4-(methylthio)phenyl)-1-(4-(trifluoromethyl)phenyl)-1H-pyrazole-3-carboxylate (CAS 641639-55-6)
- N-Isopentyl-1-isopropyl-1H-pyrazol-5-amine hydrochloride (CAS 1855946-87-0)
- Lixisenatide (CAS 320367-13-3（free base）)
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