Diethyl 1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate CAS 96722-70-2
| CAS No. | 96722-70-2 |
| Molecular Formula | C21H19N3O6 |
| Molecular Weight | 409.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H19N3O6, Diethyl 1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 409.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Diethyl 1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate (CAS 96722-70-2), a certified reference material (molecular formula C21H19N3O6, MW 409.39 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), Diethyl 1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3,4-dicarboxylate 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 | C21H19N3O6 |
| Molecular Weight | 409.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 3 |
Related Diethyl Standards
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Recommended Standards
- 2-(Methacryloyloxy)ethyl 2'-amino-3'-cyano-6'-methyl-2-oxospiro[indoline-3,4'-pyran]-5'-carboxylate (CAS 939888-98-9)
- N'-[(1E)-(3-Methoxyphenyl)methylidene]-2-[3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl]-1,3-thiazole-4-carbohydrazide (CAS 956266-21-0)
- 2-(Benzylthio)-5-((4-bromobenzyl)thio)-1,3,4-thiadiazole (CAS 477331-46-7)
- N-benzyl-N-(2-((2-methoxy-4-nitrophenyl)amino)-2-oxoethyl)furan-2-carboxamide (CAS 332163-77-6)
- N-(2,5-Dimethoxybenzyl)-2-phenylethanamine hydrobromide (CAS 1609407-57-9)
- 2-Fluoro-3-hydroxy-4,4-dimethyl-1-(pyrrolidin-1-yl)pentan-1-one (CAS 99343-20-1)
- 2-(tert-Butoxy)-3-cyclopropoxy-N-methylaniline (CAS 1243377-26-5)
- 3-Mercaptophenylbutyric Acid (CAS 359436-80-9)
- 1-Methyl-5-(thiophen-2-yl)-3-(trifluoromethyl)-1H-pyrazole (CAS 683274-56-8)
- 8-(4-Bromophenyl)-2,4-bis(trifluoromethyl)imidazo[1,2-a]1,8-naphthyridine (CAS 439093-95-5)
- 4-(2,6-Difluorobenzoyl)-3-methyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 317833-49-1)
- 1-(4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}phenyl)-5-ethyl-4-[1-(4-methylbenzenesulfonyl)ethyl]-2,3-dihydro-1H-imidazol-2-one (CAS 444151-75-1)
- N-cyclopropyl-2-methyl-7h-pyrrolo[2,3-d]pyrimidin-4-amine (CAS 85251-07-6)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
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