Tri(4-chlorophenyl)phosphineoxide CAS 4576-56-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4576-56-1 |
| Molecular Formula | C18H12Cl3OP |
| Molecular Weight | 381.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tri(4-chlorophenyl)phosphineoxide (CAS 4576-56-1) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C18H12Cl3OP. Molecular weight: 381.62 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C18H12Cl3OP |
| Molecular Weight | 381.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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 |
| Halogen Content | Cl-containing |
Related Tri Standards
- 3-Chlorophenyl (2E)-3-(6-bromo-2H-1,3-benzodioxol-5-yl)prop-2-enoate (CAS 478259-32-4)
- (6-(4-((4-Chlorophenyl)sulfonyl)piperazin-1-yl)pyridin-3-yl)boronic acid (CAS 1003043-43-3)
- Methyl 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 158941-06-1)
- Methyl 5-(4-chlorophenyl)-1-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxylate (CAS 158941-38-9)
- 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxylic Acid (CAS 162758-35-2)
- 5-(4-Chlorophenyl)-1-(2,4-dichlorobenzyl)-1H-pyrazole-3-carboxylic acid (CAS 192701-96-5)
- 1-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 321431-02-1)
- 1-(4-Chlorophenyl)-N-(3,5-dichlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 321431-31-6)
Recommended Standards
- 4-(Hexadecylsulfonyl)aniline (CAS 6052-20-6)
- (2R)-2-[Bis(3,5-dimethylphenyl)[(trimethylsilyl)oxy]methyl]pyrrolidine (CAS 948594-99-8)
- (3-(4-Bromophenyl)-1-(3-chloro-4-fluorophenyl)-1H-pyrazol-4-yl)methanol (CAS 618383-29-2)
- 1-Benzyl-2-(chloromethyl)benzene (CAS 7510-28-3)
- 2-((1S,3S)-3-Acetyl-2,2-dimethylcyclobutyl)acetaldehyde (CAS 71628-89-2)
- Methyl 5-phenylpyridazine-4-carboxylate (CAS 100136-41-2)
- Foscarnet Sodium Hexahydrate (CAS 34156-56-4)
- (S)-4-(2-(Hydroxymethyl)pyrrolidin-1-yl)-2-methylquinazolin-7-ol (CAS 646450-67-1)
- 1-Benzylidene-2-(diphenylmethylene)hydrazine (CAS 13118-38-2)
- Eosinophilotactic Peptide (CAS 61756-28-3)
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