Methyl 4-(methylthio)-3-nitrobenzoate CAS 51919-71-2
| CAS No. | 51919-71-2 |
| Molecular Formula | C9H9NO4S |
| Molecular Weight | 227.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 227.24 g/mol gives Methyl 4-(methylthio)-3-nitrobenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 4-(methylthio)-3-nitrobenzoate (CAS 51919-71-2), molecular formula C9H9NO4S and molecular weight 227.24 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 4-(methylthio)-3-nitrobenzoate (C9H9NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 4-(methylthio)-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.
Physical & Chemical Properties
| Molecular Formula | C9H9NO4S |
| Molecular Weight | 227.24 g/mol |
| 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.) | 1971 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Osilodrostat (CAS 928134-65-0)
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- 6-Chloro-3-iodo-1-trityl-1H-pyrazolo[4,3-c]pyridine, 97% (CAS 1431719-88-8)
- 4-(3,4-Dimethoxyphenyl)-2-butanone (CAS 6302-60-9)
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