O-(4-nitrobenzyl)hydroxylamine CAS 1944-96-3
| CAS No. | 1944-96-3 |
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of O-(4-nitrobenzyl)hydroxylamine is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
O-(4-nitrobenzyl)hydroxylamine (CAS 1944-96-3) is a high-purity analytical reference standard with the molecular formula C7H8N2O3 and a molecular weight of 168.15 g/mol.
Based on its molecular formula C7H8N2O3, O-(4-nitrobenzyl)hydroxylamine contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), O-(4-nitrobenzyl)hydroxylamine 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 | C7H8N2O3 |
| Molecular Weight | 168.15 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, water |
| 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.) | 1957 |
| Nitrogen Atoms | 2 |
Related O Standards
- o-(3-Nitrobenzyl)hydroxylamine (CAS 52552-21-3)
- (3-Nitrobenzyl)hydrazine (CAS 51421-22-8)
- 4-Methyl-2-nitrobenzyl Alcohol (CAS 22996-24-3)
- 4-Nitrobenzyl Cyanide (CAS 555-21-5)
- 3-Nitrobenzyl-d6 Alcohol (CAS 1219795-18-2)
- 4-nitrobenzyl chloride (CAS 100-14-1)
- 2-(4-Nitrobenzyl)oxirane (CAS 49574-55-2)
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Recommended Standards
- 3,4,6-Trihydroxy-2-methylbenzaldehyde (CAS 194221-93-7)
- 1-Methyl-1h-imidazole-4,5-dicarboxamide (CAS 19485-37-1)
- 2-Acetyl-1-methyl-1H-imidazole-4-carboxylic acid (CAS 1935214-90-6)
- (2E,4E,6E)-Octa-2,4,6-trienedioic acid (CAS 195073-49-5)
- 2-(Difluoromethyl)-3-methoxy-4-(trifluoromethyl)pyridine-5-carboxylic acid (CAS 1805264-75-8)
- N-(2-(4-ethyl-3-fluoropyridin-2-yl)phenyl)pivalamide (CAS 197177-82-5)
- 1-(3-Hydroxypyrrolidin-1-yl)-3,3-dimethylbutan-2-one (CAS 1343730-79-9)
- Ibrutinib Impurity 126 (CAS 2190506-55-7)
- 3-(Chloromethyl)-1-ethyl-1H-pyrazole (CAS 1172973-66-8)
- Methyl 5-Amino-1-methylpyrazole-3-carboxylate (CAS 92406-53-6)
- N-(2-methoxyethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-amine (CAS 1202805-24-0)
- Tert-butyl (3-(cyanomethyl)phenyl)carbamate (CAS 954238-67-6)
- 3,4-Diethoxy-1H-pyrrole (CAS 169616-16-4)
- Neuropeptide FF (5-8) (CAS 152050-35-6)
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