2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone CAS 1521159-33-0
| CAS No. | 1521159-33-0 |
| Molecular Formula | C24H18N6O4 |
| Molecular Weight | 454.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 1521159-33-0) is a high-purity analytical reference standard with the molecular formula C24H18N6O4 and a molecular weight of 454.44 g/mol.
The molecular framework of 2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (C24H18N6O4) is characterized by a flavonoid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone 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.
Physical & Chemical Properties
| Molecular Formula | C24H18N6O4 |
| Molecular Weight | 454.44 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 6 |
Related Bis Standards
- 2-[2,5-Dimethyl-1-(3-nitrobenzoyl)-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]ethyl 3-nitrobenzoate (CAS 860611-56-9)
- 6,6-Dimethyl-8-(4-morpholinopiperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (CAS 1256577-71-5)
- 2-((3-Benzyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 744268-04-0)
- Dimethyl hexacosanedioate (CAS 86797-43-5)
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- Dimethyl 2',2',4''-tricyano-5'-hydroxy-4-methyl-1',2',3',4'-tetrahydro-[1,1':3',1''-terphenyl]-4',6'-dicarboxylate (CAS 1217712-92-9)
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Recommended Standards
- Aminopterin-α-hyrazide (CAS 118359-33-4)
- (E)-Methoxy({2,2,2-trifluoro-1-[1-(4-fluorophenyl)-5-(4-methanesulfonylphenyl)-2-methyl-1H-pyrrol-3-yl]ethylidene})amine (CAS 477859-36-2)
- 1-(Benzofuro[3,2-d]pyrimidin-4-yl)-N-(2-(trifluoromethyl)benzyl)piperidine-3-carboxamide (CAS 1115900-28-1)
- 1-(3-Methoxybenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 317833-51-5)
- 1-(3-(Methylthio)phenyl)-3-(1-(3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)urea (CAS 1396674-72-8)
- tert-Butyl 4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate (CAS 849928-22-9)
- 2,6-Dimethyl-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1379327-82-8)
- 2-Chloro-4-fluoropyrimidin-5-ol (CAS 1807115-17-8)
- [2-(1H-Indol-1-yl)ethyl]amine (CAS 13708-58-2)
- Minoxidil Impurity 39 (CAS CATO-C4X-170039)
- Formyl-L-proline (CAS 13200-83-4)
- (3R,4S)-4-(4-Bromophenyl)-1-(tert-butoxycarbonyl)pyrrolidine-3-carboxylic acid (CAS 1949806-00-1)
- 1-(2,4-Difluorophenyl)-1H-pyrrole (CAS 125126-63-8)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
Why CATO?
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