Methyl 3-hydroxy-4-methoxy-2-nitrobenzoate CAS 90564-40-2
| CAS No. | 90564-40-2 |
| Molecular Formula | C9H9NO6 |
| Molecular Weight | 227.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Methyl 3-hydroxy-4-methoxy-2-nitrobenzoate (C9H9NO6) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies Methyl 3-hydroxy-4-methoxy-2-nitrobenzoate (CAS 90564-40-2), a certified reference material (molecular formula C9H9NO6, MW 227.17 g/mol) for analytical method development and quality control.
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 | C9H9NO6 |
| Molecular Weight | 227.17 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- Methyl 2-(1-(5-nitrofuran-2-yl)ethylidene)hydrazinecarboxylate (CAS 61621-22-5)
- Ethyl 4,5-dihydroxy-2-nitrobenzoate (CAS 773136-83-7)
- 4,5-Dimethoxy-2-nitrobenzoic Acid (CAS 4998-07-6)
- Ethyl 2-((5-nitrofuran-2-yl)methylene)hydrazinecarboxylate (CAS 5407-77-2)
- 3-amino-2-chloro-6-methylpyridine-4-carboxylic acid hydrochloride (CAS 1803610-45-8)
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- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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