Diphenyl(o-tolyl)phosphine CAS 5931-53-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 5931-53-3 |
| Molecular Formula | C19H17P |
| Molecular Weight | 276.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diphenyl(o-tolyl)phosphine (CAS 5931-53-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C19H17P. Molecular weight: 276.31 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C19H17P |
| Molecular Weight | 276.31 g/mol |
| 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.) | 1958 |
Related Diphenyl Standards
- 4,6-Diphenyl-2-pyrimidinecarboxylic acid (CAS 6483-96-1)
- 6,7-Diphenyl-1,2,3,4-tetrahydroimidazo[2,1-c][1,2,4]triazine (CAS 55754-05-7)
- 1020719-40-7 1,1-Diphenyl-N-{[(~2~H_4_)pyridin-3-yl]methyl}methanimine DTXSID30661941 (CAS 1020719-40-7)
- 5,6-Diphenyl-1,3,3a,4,7,7a-hexahydroisobenzofuran (CAS 823179-46-0)
- 5-Butyl-1,3-diphenyl-1H-pyrazole (CAS 16492-64-1)
- 3-Butyl-1,5-diphenyl-1H-pyrazole (CAS 871110-25-7)
- Diphenyl vinyl phosphate (CAS 33552-07-7)
- 2,6-Diphenyl-4<I>H</I>-thiopyran-4-one (CAS 1029-96-5)
Recommended Standards
- Cis-2-(6-amino-9H-purin-9-yl)cyclohexanol (CAS 724-13-0)
- Ethyl 4-(4-cyanopiperidin-1-yl)-3-fluorobenzoate (CAS 570408-19-4)
- Biotin Sulfone (CAS 40720-05-6)
- 6-Aminobenzo[d]thiazole-2,7-dicarbonitrile (CAS 1425945-85-2)
- (3AS,4S,6aR)-4-(5-(6-aminoquinolin-2-yl)-5-oxopentyl)tetrahydro-1H-thieno[3,4-d]imidazol-2(3H)-one (CAS 91853-89-3)
- 3-[(dipropylamino)sulfonyl]benzoic acid (CAS 53212-78-5)
- 4-Amino-2,5,6-trichloropyrimidine (CAS 28969-60-0)
- 3-Hydroxy-5-(trifluoromethyl)picolinaldehyde (CAS 1211528-13-0)
- 2-(Boc-amino)acetohydrazide (CAS 6926-09-6)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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