(2Z)-2-[(2,5-Difluorophenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one CAS 337921-69-4
| CAS No. | 337921-69-4 |
| Molecular Formula | C22H14F2O |
| Molecular Weight | 332.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(2Z)-2-[(2,5-Difluorophenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 337921-69-4) is a high-purity analytical reference standard with the molecular formula C22H14F2O and a molecular weight of 332.34 g/mol.
Structurally, (2Z)-2-[(2,5-Difluorophenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one (C22H14F2O) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 332.34 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), (2Z)-2-[(2,5-Difluorophenyl)methylidene]-3-phenyl-2,3-dihydro-1H-inden-1-one 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 | C22H14F2O |
| Molecular Weight | 332.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
Related Z Standards
- (2,6-Difluorophenyl)(4-(2-methoxyphenyl)piperazin-1-yl)methanone (CAS 260442-45-3)
- 2-((1-((2,5-Difluorophenyl)sulfonyl)azetidin-3-yl)oxy)thiazole (CAS 1797335-84-2)
- N-(2,4-difluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)acetamide (CAS 477320-15-3)
- N-(2,5-Difluorophenyl)-2-[4-(pyridin-2-yl)piperazin-1-yl]acetamide (CAS 849187-49-1)
- N-(3,4-difluorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)acetamide (CAS 303091-91-0)
- N1-(2,4-Difluorophenyl)-N2-(2-hydroxy-2-methyl-4-(methylthio)butyl)oxalamide (CAS 1396889-03-4)
- (1-(2,4-Difluorophenyl)-3-(4-(methylthio)phenyl)-1H-pyrazol-4-yl)methanol (CAS 618444-52-3)
- Methyl 1-(2,4-Difluorophenyl)-3-(4-fluorophenyl)-1bromoh-pyrazole-5-carboxylate (CAS 1202029-46-6)
Recommended Standards
- 1-Methyl-4-[1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazole-5-carbonyl]piperazine (CAS 338400-48-9)
- (1-Methyl-2-((2-(3-(trifluoromethyl)phenoxy)ethyl)thio)-1H-imidazol-5-yl)methanol (CAS 338422-58-5)
- 2-(3,5-Difluorophenoxy)-1-(4-phenylpiperazin-1-yl)ethan-1-one (CAS 866153-14-2)
- (3S,4R)-1-Benzyl-3-(2,4-difluoro-5-methylphenyl)-4-nitropyrrolidine (CAS 1351344-22-3)
- 2,4-Diaminopteridine (CAS 1127-93-1)
- (2R,5S)-4-tert-Butyl 2-methyl 2-isobutyl-5-(thiazol-2-yl)pyrrolidine-2,4-dicarboxylate (CAS 1820598-57-9)
- 3-(5-Chloropyridin-2-yl)-3-oxopropanenitrile (CAS 1107053-87-1)
- Benzyl 4-fluoro-5-oxoazocane-1-carboxylate (CAS 2010091-98-0)
- Ribavirin Impurity 40 (CAS 96291-75-7)
- 6867-30-7 Lithium acetylide, ethylenediamine complex Lithium, (1,2-ethanediamine-kappaN1,kappaN2)ethynyl- Lithium, (1,2-ethanediamine-kappaN,kappaN')ethynyl- EINECS 229-967-9 Lithium acetylide, ethylene diamine complex (1:1) (CAS 6867-30-7)
- Ethyl 4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxylate (CAS 886952-50-7)
- Methyl 2-[(5-bromopyridin-2-yl)amino]acetate (CAS 620175-59-9)
- Ethyl 7-hydroxybenzofuran-5-carboxylate (CAS 831222-95-8)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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