(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-butyl-2-hydroxyphenyl)(phenyl)phosphinate CAS 1592980-16-9
| CAS No. | 1592980-16-9 |
| Molecular Formula | C26H37O3P |
| Molecular Weight | 428.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-butyl-2-hydroxyphenyl)(phenyl)phosphinate (CAS 1592980-16-9) is a high-purity analytical reference standard with the molecular formula C26H37O3P and a molecular weight of 428.54 g/mol.
(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-butyl-2-hydroxyphenyl)(phenyl)phosphinate (C26H37O3P) contains a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-butyl-2-hydroxyphenyl)(phenyl)phosphinate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H37O3P |
| Molecular Weight | 428.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Recommended Standards
- (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-(tert-butyl)-2-hydroxyphenyl)(phenyl)phosphinate (CAS 1464049-08-8)
- Apremilast Impurity 117 (CAS CATO-C4X-1009117)
- 4-Butylphenyl ((1R,2S,5R)-2-isopropyl-5-methylcyclohexyl) phenylphosphonate (CAS 1463875-94-6)
- Apremilast Impurity 37 (CAS 1407140-51-5)
- 2-Amino-5-aminomethyl-phenol dihydrochloride (CAS 943751-53-9)
- (1-(4-Methoxyphenyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 910546-48-4)
- Amino acid Impurity 22 (CAS 101080-23-3)
- (1R,2R)-1-Amino-2-ethylcyclopropanecarboxylic acid (CAS 63393-57-7)
- 10074-G5 (CAS 413611-93-5)
- rac Methamphetamine-d9 Hydrochloride (CAS 1219805-48-7)
- 3-Iodopyrazine-2-carboxylic Acid (CAS 212471-40-4)
- 2-(4-Isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 502649-34-5)
- (R)-2-Bromo-4-phenylbutanoic acid (CAS 121842-76-0)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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 18665070610 / Nicole.chen@cato-chem.com