(3E)-3-(2-Oxopentylidene)-2-phenyl-2,3-dihydro-1H-isoindol-1-one CAS 338409-26-0
| CAS No. | 338409-26-0 |
| Molecular Formula | C19H17NO2 |
| Molecular Weight | 291.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (3E)-3-(2-Oxopentylidene)-2-phenyl-2,3-dihydro-1H-isoindol-1-one (CAS 338409-26-0), a certified reference material (molecular formula C19H17NO2, MW 291.34 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (3E)-3-(2-Oxopentylidene)-2-phenyl-2,3-dihydro-1H-isoindol-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 291.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 (3E)-3-(2-Oxopentylidene)-2-phenyl-2,3-dihydro-1H-isoindol-1-one 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 | C19H17NO2 |
| Molecular Weight | 291.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2S,4R)-Boc-4-phenyl-pyrrolidine-2-carboxylic acid (CAS 336818-78-1)
- (3R,4S)-1-(Tert-butoxycarbonyl)-4-phenylpyrrolidine-3-carboxylic acid (CAS 956101-09-0)
- (2S,3S)-2-Phenylpyrrolidine-1,3-dicarboxylic acid 1-tert-Butyl ester (CAS 870721-53-2)
- (4-Isobutoxybenzoyl)proline (CAS 303729-54-6)
- 5-Bromo-2-(tert-butyl)-3-cyclopropoxypyridine (CAS 1243370-96-8)
- 4-Chloro-1H-imidazole-5-carboximidhydrazide (CAS 83256-04-6)
- 1-(7-Fluorobenzo[b]thiophen-3-yl)ethan-1-one (CAS 1569088-97-6)
- 2-Cyclopropoxy-4-isopropylbenzamide (CAS 1243395-49-4)
- Netupitant (CAS 290297-26-6)
- tert-Butyl ((5-bromo-7-chloro-2,3-dihydrobenzofuran-2-yl)methyl)carbamate (CAS 872518-71-3)
- 1-((4-Chloropyridin-2-yl)methyl)-1H-1,2,4-triazole-3-carbonitrile (CAS 1513755-26-4)
- 3-Ethyl-1-methyl-6-nitroindolin-2-one (CAS 505029-56-1)
- 2-(3-Methylcyclopentylidene)acetic acid (CAS 854916-80-6)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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