4-(4-Chlorophenyl)-3-methyl-1-phenylindeno[1,2-b]pyrazolo[4,3-e]pyridin-5(1H)-one CAS 1009630-24-3
| CAS No. | 1009630-24-3 |
| Molecular Formula | C26H16ClN3O |
| Molecular Weight | 421.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(4-Chlorophenyl)-3-methyl-1-phenylindeno[1,2-b]pyrazolo[4,3-e]pyridin-5(1H)-one (CAS 1009630-24-3), a certified reference material (molecular formula C26H16ClN3O, MW 421.88 g/mol) for analytical method development and quality control.
The molecular framework of 4-(4-Chlorophenyl)-3-methyl-1-phenylindeno[1,2-b]pyrazolo[4,3-e]pyridin-5(1H)-one (C26H16ClN3O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H16ClN3O |
| Molecular Weight | 421.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- N-(1-(1-(3-Chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-3-methyl-1H-pyrazol-5-yl)cyclopentanecarboxamide (CAS 1005925-62-1)
- 3-(4-Chlorophenyl)-3-{[(9H-fluoren-9-ylmethoxy)-carbonyl]amino}propanoic acid (CAS 194471-87-9)
- (E)-1-((4-chlorophenyl)sulfonyl)-N'-(2-hydroxybenzylidene)piperidine-4-carbohydrazide (CAS 393852-31-8)
- 2-((5-(2-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N,N-diphenylacetamide (CAS 336180-10-0)
- 2-((5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N,N-diphenylacetamide (CAS 332386-58-0)
- 2-(4-Chlorophenyl)-3-[(4-methoxyphenyl)sulfanyl]quinoline-4-carboxylic acid (CAS 477867-89-3)
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- N-(3-chlorophenyl)-2-((4-phenyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332385-34-9)
Recommended Standards
- 1274948-09-2 5-[(E)-[(4-butoxyphenyl)methylidene]amino]-1-(4-chlorophenyl)-6-imino-2-oxo-1,2,3,6-tetrahydropyrimidine-4-carbonitrile MS-8937 (CAS 1274948-09-2)
- Fmoc-Phe(4-Cl)-OH (CAS 175453-08-4)
- 1-(3-(1H-imidazol-1-yl)propyl)-4-benzoyl-5-(4-chlorophenyl)-3-hydroxy-1,5-dihydro-2H-pyrrol-2-one (CAS 381717-91-5)
- Fmoc-D-Phe(4-Cl)-OH (CAS 142994-19-2)
- 3-(acetylamino)-3-(4-chlorophenyl)propanoic acid (CAS 197785-38-9)
- 1-methyl-1H-imidazo[4,5-c]pyridine-7-carboxylic acid hydrochloride (CAS 1989672-50-5)
- 2-((3,6-Dimethyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetic acid (CAS 886500-82-9)
- 2,9-Di(cyclohexyl)-anthra2,1,9-def:6,5,10-defdiisoquinoline-1,3,8,10-tetrone (CAS 41572-86-5)
- 5-Cyano-N-methyl-1-phenyl-1H-pyrazole-4-carboxamide (CAS 98477-03-3)
- 3-(4-Bromophenyl)-2-hydroxypropanoic acid (CAS 154192-53-7)
- 2-(4-Nitro-1h-pyrazol-1-yl)propanehydrazide (CAS 959059-55-3)
- Lead Styphnate (CAS 15245-44-0)
- Cyclohexanamine hydrobromide (CAS 26227-54-3)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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