Tribenzylphosphine oxide CAS 4538-55-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4538-55-0 |
| Molecular Formula | C21H21OP |
| Molecular Weight | 320.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tribenzylphosphine oxide (CAS 4538-55-0) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H21OP. Molecular weight: 320.36 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H21OP |
| Molecular Weight | 320.36 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 Tribenzylphosphine Standards
- Tribenzylphosphine (CAS 7650-89-7)
- Tribenzylphosphine(1,5-cyclooctadiene)[1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene]iridium(I) hexafluorophosphate, min. 98% (CAS 1019853-01-0)
- Tribenzylphosphine(1,5-cyclooctadiene)[1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene]iridium(I) hexafluorophosphate (CAS 1019853-02-1)
Recommended Standards
- tert-Butyl 5-fluoro-2-oxospiro[indoline-3,4-piperidine]-1-carboxylate (CAS 866028-06-0)
- Tris(4-methylphenyl)phosphine Oxide (CAS 797-70-6)
- tert-Butyl 4-fluoro-2-oxospiro[indoline-3,4'-piperidine]-1'-carboxylate (CAS 2197055-58-4)
- 6-Cyano-1-ethylbenzoimidazole (CAS 1215205-91-6)
- 2-((2-fluoro-4-(oxetan-3-yl)benzyl)oxy)tetrahydro-2H-pyran (CAS CATO-C3D-262178)
- (2R,4S)-2-t-Butyl-N-benzyl-4-[1-(S)-hydroxy-2-methylpropyl]-oxazolidine-4-carboxylic Acid, Methyl Ester (CAS 145451-90-7)
- (3-Chloro-4-(diethylcarbamoyl)phenyl)boronic acid (CAS 850589-48-9)
- Dimethyl-{6-[4-(4-methyl-piperazin-1-ylmethyl)-phenyl]-4-trifluoromethyl-pyridin-2-yl}-amine (CAS 1311279-37-4)
- Upadacitinib-15N-d2 (CAS CATO-C4X-240579)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
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