| CAS No. | 28749-63-5 |
| Molecular Formula | C28H30O7P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 532.50 g/mol gives 4-(1-(4-Hydroxy-5-isopropyl-2-methylphenyl)-3-oxo-1,3-dihydroisobenzofuran-1-yl)-2-isopropyl-5-methylphenyl dihydrogen phosphate xsodium salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(1-(4-Hydroxy-5-isopropyl-2-methylphenyl)-3-oxo-1,3-dihydroisobenzofuran-1-yl)-2-isopropyl-5-methylphenyl dihydrogen phosphate xsodium salt (CAS 28749-63-5) is a high-purity analytical reference standard with the molecular formula C28H30O7PNa and a molecular weight of 532.50 g/mol.
Structurally, 4-(1-(4-Hydroxy-5-isopropyl-2-methylphenyl)-3-oxo-1,3-dihydroisobenzofuran-1-yl)-2-isopropyl-5-methylphenyl dihydrogen phosphate xsodium salt (C28H30O7PNa) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 532.50 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).
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 manufactures 4-(1-(4-Hydroxy-5-isopropyl-2-methylphenyl)-3-oxo-1,3-dihydroisobenzofuran-1-yl)-2-isopropyl-5-methylphenyl dihydrogen phosphate xsodium salt under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C28H30O7P Na |
| Molecular Weight | 532.50 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1965 |