(1R,5S)-3,3,5-trimethylcyclohexyl ((1S,5R)-3,3,5-trimethylcyclohexyl) phthalate CAS 245652-82-8
| CAS No. | 245652-82-8 |
| Molecular Formula | C26H38O4 |
| Molecular Weight | 414.58 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.
CATO supplies (1R,5S)-3,3,5-trimethylcyclohexyl ((1S,5R)-3,3,5-trimethylcyclohexyl) phthalate (CAS 245652-82-8), a certified reference material (molecular formula C26H38O4, MW 414.58 g/mol) for analytical method development and quality control.
The molecular framework of (1R,5S)-3,3,5-trimethylcyclohexyl ((1S,5R)-3,3,5-trimethylcyclohexyl) phthalate (C26H38O4) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C26H38O4 |
| Molecular Weight | 414.58 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
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