6840-28-4 (4-Methylphenyl)(oxo)diphenyl-lambda~5~-phosphane DTXSID30502229 CAS 6840-28-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 6840-28-4 |
| Molecular Formula | C19H17OP |
| Molecular Weight | 292.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6840-28-4 (4-Methylphenyl)(oxo)diphenyl-lambda~5~-phosphane DTXSID30502229 (CAS 6840-28-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C19H17OP. Molecular weight: 292.31 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C19H17OP |
| Molecular Weight | 292.31 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methylphenyl Standards
- N-(4-Methylphenyl)-4-nitrobenzenesulfonamide (CAS 109845-76-3)
- 6840-26-2 (2-Methylphenyl)(oxo)diphenyl-lambda~5~-phosphane DTXSID40502230 (CAS 6840-26-2)
- 3-(2-Methylphenyl)-2-trifluoromethylpropiophenone (CAS 898789-73-6)
- 3-(3-Methylphenyl)-3-trifluoromethylpropiophenone (CAS 898791-05-4)
- 3-(3-Methylphenyl)-4-trifluoromethylpropiophenone (CAS 898791-08-7)
- 1-Benzyl-3-(4-methylphenyl)-1h-pyrazole-4-carboxylic acid (CAS 956453-12-6)
- N-(4-Methylphenyl)-1-(6-methylpyridin-2-yl)-1H-imidazole-4-carboxamide (CAS 477864-36-1)
- {[(4-methylphenyl)methyl]sulfamoyl}[(pyridin-4-yl)methyl]amine (CAS 337924-57-9)
Recommended Standards
- Rosuvastatin Impurity 269 (CAS CATO-C4X-1169269)
- 5572-57-6 (CAS 5572-57-6)
- Rosuvastatin Impurity 79 (CAS 488798-36-3)
- N-(2-((5-(1H-Imidazol-1-yl)pentyl)oxy)phenyl)acetamide (CAS 88137-95-5)
- (S,R,S)-AHPC-acetamido-O-PEG3-propargyl (CAS 2098799-81-4)
- Sodium 2-iodobenzenesulfonate (CAS 62973-69-7)
- Methyl 5-methyl-2-oxo-5-phenyl-2,5-dihydrofuran-3-carboxylate (CAS 67498-41-3)
- 2H,3H,4H,5H-Pyrido[4,3-f][1,4]oxazepine (CAS 956433-25-3)
- Isothiazolo[3,4-d]pyrimidine (CAS 14521-32-5)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
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 13829788188 / jacky.chen@cato-chem.com