Methyl 3-nitro-4-(1H-pyrazol-1-yl)benzoate CAS 321526-14-1
| CAS No. | 321526-14-1 |
| Molecular Formula | C11H9N3O4 |
| Molecular Weight | 247.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 3-nitro-4-(1H-pyrazol-1-yl)benzoate 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.
CATO supplies Methyl 3-nitro-4-(1H-pyrazol-1-yl)benzoate (CAS 321526-14-1), a certified reference material (molecular formula C11H9N3O4, MW 247.21 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Methyl 3-nitro-4-(1H-pyrazol-1-yl)benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 247.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9N3O4 |
| Molecular Weight | 247.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 3-[(3-nitro-1h-pyrazol-1-yl)methoxy]benzaldehyde (CAS 1006435-82-0)
- 3-((4-Nitro-1h-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1006436-08-3)
- 4-((3-Nitro-1h-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1006953-42-9)
- 4-[(4-nitro-1H-pyrazol-1-yl)methoxy]benzaldehyde (CAS 1006953-87-2)
- 1-(7-Nitro-2,3-dihydro-1,4-benzodioxin-6-yl)-1H-imidazole (CAS 1020242-98-1)
- 1-(4-Nitro-benzyl)-1H-pyrazole-4-carboxylic acid (CAS 1153368-80-9)
- 5-Methyl-4-nitro-N-(pyridin-2-yl)-1H-pyrazole-3-carboxamide (CAS 115869-56-2)
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Recommended Standards
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