4-Nitro-D-phenylalanine monohydrate CAS 444777-67-7
| CAS No. | 444777-67-7 |
| Molecular Formula | C9H10N2O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.20 g/mol gives 4-Nitro-D-phenylalanine monohydrate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Nitro-D-phenylalanine monohydrate (CAS 444777-67-7), molecular formula C9H10N2O4H2O and molecular weight 228.20 g/mol, is a CATO reference standard with documented purity and traceability.
4-Nitro-D-phenylalanine monohydrate (C9H10N2O4H2O) 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).
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 | C9H10N2O4 H2O |
| Molecular Weight | 228.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Nitro Standards
- 4-Nitro-2-propylbenzo[d]oxazole (CAS 1000018-05-2)
- 5-Nitro-4-(trifluoromethyl)pyridin-2-amine (CAS 1000152-83-9)
- 3-Nitro-4-(2,2,2-trifluoroethoxy)aniline (CAS 1000339-84-3)
- 6-Methyl-5-nitro-7H-pyrrolo[2,3-b]pyridine (CAS 1000340-19-1)
- 6-Methyl-5-nitro-1H-pyrrolo[2,3-b]pyridin-3-amine (CAS 1000340-22-6)
- 6-Methyl-3-nitro-1H-pyrrolo[2,3-b]pyridin-5-amine (CAS 1000340-23-7)
- 6-Methyl-5-nitro-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (CAS 1000340-24-8)
- 6-Methyl-5-nitro-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1000340-25-9)
Recommended Standards
- Ethyl 4-oxo-1,4-dihydroquinoline-2-carboxylate (CAS 13720-90-6)
- 1-Ethyl-2-((3-(1-ethyl-3,3-dimethyl-5-sulfoindolin-2-ylidene)prop-1-en-1-yl)-3,3-dimethyl-3H-indol-1-ium-5-sulfonate (CAS 765265-69-8)
- ((2R,3S,5R)-5-(2,6-Dioxo-2,3-dihydro-1H-purin-9(6H)-yl)-3-hydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate (CAS 5187-90-6)
- Methyl 7-aminobenzo[d][1,3]dioxole-5-carboxylate (CAS 7106-97-0)
- 3-Chloro-6-hydroxy-2-(trifluoromethyl)pyridine (CAS 1227514-31-9)
- 4,5,6,7-Tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carbohydrazide (CAS 1306739-20-7)
- 1-Benzyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 33443-58-2)
- 4,6-Dichloro-8-fluoroquinazoline (CAS 1566199-66-3)
- 1-Chloro-3-propan-2-ylsulfonylbenzene (CAS 70398-96-8)
- Delta-Sleep Inducing Peptide (CAS 62568-57-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com