| CAS No. | 114218-25-6 |
| Molecular Formula | C42H42O6 |
| Molecular Weight | 642.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
4,5-O-Isopropylidene-3,6-bis-O-(phenylmethyl)-1-O-(triphenylmethyl) DL-myo-Inositol (CAS 114218-25-6), molecular formula C42H42O6 and molecular weight 642.78 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4,5-O-Isopropylidene-3,6-bis-O-(phenylmethyl)-1-O-(triphenylmethyl) DL-myo-Inositol (C42H42O6) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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.
| Molecular Formula | C42H42O6 |
| Molecular Weight | 642.78 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |