(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-(tert-butyl)-2-hydroxyphenyl)(phenyl)phosphinate CAS 1464049-08-8
| CAS No. | 1464049-08-8 |
| Molecular Formula | C26H37O3P |
| Molecular Weight | 428.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-(tert-butyl)-2-hydroxyphenyl)(phenyl)phosphinate (C26H37O3P) contains a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 428.54 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).
(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-(tert-butyl)-2-hydroxyphenyl)(phenyl)phosphinate (CAS 1464049-08-8) is a high-purity analytical reference standard with the molecular formula C26H37O3P and a molecular weight of 428.54 g/mol.
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.
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.
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.) | 1992 |
Recommended Standards
- 4-Butylphenyl ((1R,2S,5R)-2-isopropyl-5-methylcyclohexyl) phenylphosphonate (CAS 1463875-94-6)
- (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (5-butyl-2-hydroxyphenyl)(phenyl)phosphinate (CAS 1592980-16-9)
- 4-(tert-Butyl)phenyl ((1R,2S,5R)-2-isopropyl-5-methylcyclohexyl) phenylphosphonate (CAS 1463875-88-8)
- Apremilast Impurity 117 (CAS CATO-C4X-1009117)
- {2-[2-(3-Methylbutoxy)phenyl]ethyl}amine hydrochloride (CAS 1201633-45-5)
- 2-Bromo-4-(3-(pyridin-2-yl)-1H-pyrazol-4-yl)pyridine (CAS 446880-81-5)
- 3-(4-Isopropylphenyl)propan-1-ol (CAS 79942-40-8)
- 4-(4-Chlorophenoxy)-3-methylaniline (CAS 857007-14-8)
- 2-Amino-2-(5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-2-yl)ethan-1-ol (CAS 1501029-09-9)
- 3-Amino-1-{4-[(difluoromethyl)sulfanyl]phenyl}thiourea (CAS 721910-08-3)
- Clindamycin Impurity 95 (CAS CATO-C4X-134195)
- 4-Bromo-3-phenyl-5-(trifluoromethyl)-1H-pyrazole (CAS 230295-07-5)
- 4-Methyl-d3-catechol (CAS 83719-41-9)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
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