Phosphorous acid, 2-(1,1-dimethylethyl)-4-[1-[3-(1,1-dimethylethyl)-4-hydroxyphenyl]-1-methylethyl]phenyl bis(4-nonylphenyl) ester CAS 20227-53-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20227-53-6 |
| Molecular Formula | C53H77O4P |
| Molecular Weight | 809.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Phosphorous acid, 2-(1,1-dimethylethyl)-4-[1-[3-(1,1-dimethylethyl)-4-hydroxyphenyl]-1-methylethyl]phenyl bis(4-nonylphenyl) ester (CAS 20227-53-6) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C53H77O4P. Molecular weight: 809.15 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C53H77O4P |
| Molecular Weight | 809.15 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
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Recommended Standards
- Ursodeoxycholic Acid Impurity 119 (CAS 1024498-33-6)
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- Cholic Acid Impurity 40 (CAS CATO-C4X-116040)
- 1-tert-Butyl 3-methyl 3-benzyl-4-oxopiperidine-1,3-dicarboxylate (CAS 193274-00-9)
- (R)-tert-Butyl 2-aminopent-4-ynoate (CAS 1315053-70-3)
- 1-Chloro-2-cyclopropoxy-4-ethylbenzene (CAS 1243482-60-1)
- Lornoxicam impurity 51 (CAS CATO-C4X-201651)
- 2-(Difluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-acetonitrile (CAS 1804839-39-1)
- 4-(2-(3-Chlorobenzamido)-4-((2,4-dichlorophenethyl)carbamoyl)phenyl)-N-ethyl-1,4-diazepane-1-carboxamide (CAS 870998-13-3)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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