260973-82-8 Ethyl 5-methyl-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate MFCD00233459 CAS 260973-82-8
| CAS No. | 260973-82-8 |
| Molecular Formula | C13H13N3O4 |
| Molecular Weight | 275.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 260973-82-8 Ethyl 5-methyl-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate MFCD00233459 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 260973-82-8 Ethyl 5-methyl-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate MFCD00233459 (CAS 260973-82-8), a certified reference material (molecular formula C13H13N3O4, MW 275.26 g/mol) for analytical method development and quality control.
The molecular framework of 260973-82-8 Ethyl 5-methyl-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate MFCD00233459 (C13H13N3O4) is characterized by a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C13H13N3O4 |
| Molecular Weight | 275.26 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 DMSO, DMF, methanol |
| 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 |
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com