(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl o-tolyl phenylphosphonate CAS 1463875-81-1
| CAS No. | 1463875-81-1 |
| Molecular Formula | C23H31O3P |
| Molecular Weight | 386.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl o-tolyl phenylphosphonate (CAS 1463875-81-1), molecular formula C23H31O3P and molecular weight 386.46 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H31O3P, (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl o-tolyl phenylphosphonate contains a steroid core, a phosphonate group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 386.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C23H31O3P |
| Molecular Weight | 386.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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
- N-(4-(4-(Phenylsulfonyl)piperidine-1-carbonyl)phenyl)acetamide (CAS 1448063-34-0)
- (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl m-tolyl phenylphosphonate (CAS 1463876-14-3)
- 1-(2-(4-(4-Fluorophenyl)piperazin-1-yl)ethyl)-3-(2-phenoxyethyl)urea (CAS 1396767-05-7)
- (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl (2-hydroxy-3-methylphenyl)(phenyl)phosphinate (CAS 1464049-04-4)
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