| CAS No. | 6869-00-7 |
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,3-Bis(4-hydroxy-2-isopropyl-5-methylphenyl)isobenzofuran-1(3H)-one (CAS 6869-00-7), molecular formula C28H30O4 and molecular weight 430.54 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,3-Bis(4-hydroxy-2-isopropyl-5-methylphenyl)isobenzofuran-1(3H)-one (C28H30O4) 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 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).
As a certified reference material (CRM), 3,3-Bis(4-hydroxy-2-isopropyl-5-methylphenyl)isobenzofuran-1(3H)-one 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.
| Molecular Formula | C28H30O4 |
| Molecular Weight | 430.54 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |