| CAS No. | 869889-37-2 |
| Molecular Formula | C27H25NO7 |
| Molecular Weight | 475.49 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',6'-Dihydroxy-N-(6-hydroxyhexyl)-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxamide (CAS 869889-37-2) is a high-purity analytical reference standard with the molecular formula C27H25NO7 and a molecular weight of 475.49 g/mol.
The molecular framework of 3',6'-Dihydroxy-N-(6-hydroxyhexyl)-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-5-carboxamide (C27H25NO7) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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 | C27H25NO7 |
| Molecular Weight | 475.49 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |