Methyl 5-bromo-2-methoxy-3-nitrobenzoate CAS 67657-90-3
| CAS No. | 67657-90-3 |
| Molecular Formula | C9H8BrNO5 |
| Molecular Weight | 290.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 5-bromo-2-methoxy-3-nitrobenzoate 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.
Methyl 5-bromo-2-methoxy-3-nitrobenzoate (CAS 67657-90-3) is a high-purity analytical reference standard with the molecular formula C9H8BrNO5 and a molecular weight of 290.07 g/mol.
Methyl 5-bromo-2-methoxy-3-nitrobenzoate (C9H8BrNO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C9H8BrNO5 |
| Molecular Weight | 290.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Methyl Standards
- Methyl 6-bromo-3-methoxy-2-nitrobenzoate (CAS 127971-98-6)
- Ethyl 2-bromo-3-hydroxy-4-nitrobenzoate (CAS 129788-20-1)
- Ethyl 3-bromo-4-hydroxy-5-nitrobenzoate (CAS 141778-85-0)
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- Methyl 4-bromo-5-methoxy-2-nitrobenzoate (CAS 1623120-78-4)
- 2-Bromo-5,6-dimethoxy-3-nitrobenzaldehyde (CAS 885952-37-4)
- 3-Bromo-4-methoxy-5-nitro-benzoic acid methyl ester (CAS 40258-73-9)
- 3-Bromo-5,6-dimethoxy-2-nitrobenzaldehyde (CAS 861522-37-4)
Recommended Standards
- methyl 4-bromo-2-methoxy-5-nitrobenzoate (CAS 98590-43-3)
- Methyl 5-bromo-3-methoxy-2-nitrobenzoate (CAS 56709-72-9)
- Ethyl 5-bromo-2-hydroxy-3-nitrobenzoate (CAS 773136-20-2)
- 6-Bromo-2-methyl-8-(trifluoromethyl)quinoline (CAS 1017412-49-5)
- (S)-2-((tert-Butoxycarbonyl)amino)hept-6-ynoic acid (CAS 1234692-59-1)
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- 4-(Hexyloxy)-3-methoxyaniline (CAS 15382-62-4)
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- Azobenzene-4-sulfonyl Chloride (CAS 102840-82-4)
- Ethyl2,3-dihydro-5,6-dimethoxy-1-oxo-1H-indene-2-carboxylate (CAS 53295-44-6)
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- 1,2-Dibromoethane- (CAS 33458-49-0)
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