2-Methoxy-3-nitroaniline CAS 85-45-0
| CAS No. | 85-45-0 |
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.15 g/mol gives 2-Methoxy-3-nitroaniline distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Methoxy-3-nitroaniline (CAS 85-45-0), a certified reference material (molecular formula C7H8N2O3, MW 168.15 g/mol) for analytical method development and quality control.
2-Methoxy-3-nitroaniline (C7H8N2O3) 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 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), 2-Methoxy-3-nitroaniline 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 Methoxy Standards
- 2-Methoxy-6-methyl-3-nitropyridine (CAS 112163-03-8)
- 5-Methoxy-2-methylpyrimidine-4-carboxylic acid (CAS 113949-10-3)
- 6-Methoxy-5-methylpyrimidine-4-carboxylic acid (CAS 1211507-53-7)
- 5-Methoxy-2-methyl-3-nitropyridine (CAS 1211534-67-6)
- 2-Methoxy-4-methylpyrimidine-5-carboxylic acid (CAS 1228113-00-5)
- 5-Methoxy-3-methylpyrazine-2-carboxylic Acid (CAS 1262860-60-5)
- (6S)-6-Methoxy-4,6-dihydrofuro[3,2-c]pyran-2-one (CAS 131149-16-1)
- 2-Methoxy-6-methylpyrimidine-4-carboxylic acid (CAS 136518-00-8)
Recommended Standards
- 2-Methoxy-3-methyl-5-nitropyridine (CAS 89694-10-0)
- 2-Methoxy-4-methyl-5-nitropyridine (CAS 6635-90-1)
- 2-Hydroxy-5,6-dimethylpyrimidine-4-carboxylic acid (CAS 941243-83-0)
- 2-Methoxy-5-methyl-3-nitropyridine (CAS 33252-62-9)
- 4-(4-Chloro-6-nitroquinolin-2-yl)benzene-1-sulfonyl fluoride (CAS 197160-63-7)
- 4-[(Cyclopropylcarbonyl)amino]benzoic Acid (CAS 23745-26-8)
- 2-(Ethylamino)-N-isobutylbenzamide (CAS 1251053-76-5)
- 3-Oxo-2-phenyl-2,3-dihydropyridazine-4-carbohydrazide (CAS 400079-20-1)
- 53755-58-1 2-Propenoic acid, 3-(4-hydroxy-3-(3-methyl-2-butenyl)phenyl)-, (2E)- (E)-3-(4-Hydroxy-3-(3-methyl-2-butenyl)phenyl)-2-propenoic acid (CAS 53755-58-1)
- 3-(Benzyloxy)-4-chloroaniline (CAS 76464-57-8)
- 1-Benzyl 4-(tert-butyl) 2-methyl (S)-piperazine-1,2,4-tricarboxylate (CAS 314741-38-3)
- N-(Furan-2-ylmethyl)-4'-(heptyloxy)-[1,1'-biphenyl]-4-carboxamide (CAS 920270-11-7)
- 5-Ethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2223040-30-8)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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