Tribenzylphosphine CAS 7650-89-7
| CAS No. | 7650-89-7 |
| Molecular Formula | C21H21P |
| Molecular Weight | 304.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Tribenzylphosphine (CAS 7650-89-7), a certified reference material (molecular formula C21H21P, MW 304.37 g/mol) for analytical method development and quality control.
Structurally, Tribenzylphosphine (C21H21P) contains organophosphorus functionality, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 304.37 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H21P |
| Molecular Weight | 304.37 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 |
| 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.) | 1959 |
Related Tribenzylphosphine Standards
- Tribenzylphosphine oxide (CAS 4538-55-0)
- 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 (2S,4R)-4-azido-2-(methylsulfonylmethyl)pyrrolidine-1-carboxylate (CAS 2749601-03-2)
- Tri-m-tolylphosphine (CAS 6224-63-1)
- N-Ethyl-N-(5-(N-phenylacetamido)-1,3,4-thiadiazol-2-yl)acetamide (CAS 61784-93-8)
- 2435-64-5 Benzenesulfonamide, p-((p-(dimethylamino)phenyl)azo)- 3-16-00-00372 (Beilstein Handbook Reference) BRN 0677712 4-Sulfonamide-4'-dimethylaminoazobenzene (CAS 2435-64-5)
- Methyl 4-Formamidobenzoate (CAS 53405-05-3)
- 2-(Bromomethyl)-6-cyano-3-(difluoromethyl)pyridine-4-carboxylic acid (CAS 1805978-42-0)
- Ethyl 2-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)acetate (CAS 1346697-35-5)
- 2-((6-Ethoxy-4-methylquinazolin-2-yl)amino)-6-(4-methoxyphenyl)-5,6-dihydropyrimidin-4(3H)-one (CAS 371224-09-8)
- 2-Chlorobenzene-1,4-diamine hydrochloride (CAS 62106-51-8)
- N-(9,9-dimethyl-9H-fluoren-2-yl)-N-(9,9-diphenyl-9H-fluoren-2-yl)dibenzo[b,d]furan-1-amine (CAS 2356086-93-4)
- 2,3-Dihydrobenzofuran-5-carbonitrile (CAS 84944-75-2)
- Glycerol Impurity 21 Sodium Salt (CAS 68900-73-2)
- 5-Chloro-4-nitrobenzofuran-2-carboxylic acid (CAS 412336-57-3)
- β-Asp9-Tirzepatide (CAS CATO-CPTD788931)
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