4-(4-Methyl-2-nitrophenyl)morpholine CAS 91181-62-3
| CAS No. | 91181-62-3 |
| Molecular Formula | C11H14N2O3 |
| Molecular Weight | 222.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Methyl-2-nitrophenyl)morpholine (C11H14N2O3) contains an amino-acid-derived structure, 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).
4-(4-Methyl-2-nitrophenyl)morpholine (CAS 91181-62-3), molecular formula C11H14N2O3 and molecular weight 222.24 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H14N2O3 |
| Molecular Weight | 222.24 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
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- 4-(4-Nitrophenyl)tetrahydro-2H-pyran-4-amine (CAS 1260671-42-8)
- (3S)-1-[(3-nitrophenyl)methyl]pyrrolidin-3-ol (CAS 1568191-65-0)
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- 2-(3-Nitrophenyl)-N-propylacetamide (CAS 58730-53-3)
- 4-(2-Methyl-4-nitrophenyl)morpholine (CAS 223404-63-5)
Recommended Standards
- 4-(4-Methoxyphenyl)-2-methyl-4-oxobutanoic acid (CAS 5717-16-8)
- 4-(4-Methyl-3-nitrophenyl)morpholine (CAS 245117-17-3)
- 4-(4-Methoxy-2-methylphenyl)-4-oxobutanoic acid (CAS 67405-48-5)
- 4-(4-Nitrobenzyl)morpholine (CAS 6425-46-3)
- H-Ala-Ala-Phe-AMC (free base) (CAS 62037-41-6)
- N-(2-Amino-4-methylpyrimidin-5-yl)benzamide (CAS 649746-04-3)
- (1H-Indol-3-yl)boronic acid (CAS 741253-05-4)
- (3-Hydroxyazetidin-1-yl)(2-methylthiazol-4-yl)methanone (CAS 1478278-43-1)
- methyl 2-(methoxymethyl)pyrrolidine-2-carboxylate hydrochloride (CAS 1989672-70-9)
- 4-Fluoro-3-isopropoxy-5-methylbenzaldehyde (CAS 2484889-03-2)
- 4-Bromo-6-iodo-5-methylpyrimidine (CAS 1805574-74-6)
- N-(Methylsulfonyl)-2-(pyrrolidin-1-ylimino)butanamide (CAS 88465-48-9)
- Yuehgesin C (CAS 125072-68-6)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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