3582-82-9 CTK1B6676 Phosphine oxide, diphenyl[(1E)-2-phenylethenyl]- CAS 3582-82-9
| CAS No. | 3582-82-9 |
| Molecular Formula | C20H17OP |
| Molecular Weight | 304.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3582-82-9 CTK1B6676 Phosphine oxide, diphenyl[(1E)-2-phenylethenyl]- (C20H17OP) is characterized by a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3582-82-9 CTK1B6676 Phosphine oxide, diphenyl[(1E)-2-phenylethenyl]- (CAS 3582-82-9), molecular formula C20H17OP and molecular weight 304.32 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C20H17OP |
| Molecular Weight | 304.32 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Recommended Standards
- N-allyl-3-(4-nitrophenoxy)thiophene-2-carboxamide (CAS 252026-91-8)
- 2-(triphenylphosphoranylidene)acetaldehyde (CAS 2136-75-6)
- N-Allyl-3-(2-nitrophenoxy)-2-thiophenecarboxamide (CAS 337919-95-6)
- Enzalutamide Impurity 66 (CAS CATO-C4X-101666)
- (4-Nitro-1H-benzo[d]imidazol-1-yl)methanol (CAS 86230-81-1)
- Isopropyl ethylenesulfonate (CAS 3851-91-0)
- (3-Ethyl-2,4-dioxoimidazolidin-1-yl)acetic acid (CAS 1329809-37-1)
- 2-(3-Methyl-5-oxo-4-(p-tolyl)-4,5-dihydro-1H-1,2,4-triazol-1-yl)propanoic acid (CAS 866149-18-0)
- 4-{[(E)-2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]amino}-N,N-dimethylbenzene-1-sulfonamide (CAS 303997-75-3)
- 1-Cyclohexylbut-3-yn-1-ol (CAS 133690-98-9)
- 1,5-Dimethylpyrimidin-2(1H)-one (CAS 17758-24-6)
- Methyl 3-bromomethyl-5-chlorobenzoate (CAS 153203-54-4)
- 6-Fluoro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 1036762-17-0)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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