| CAS No. | 55136-76-0 |
| Molecular Formula | C33H40O21 |
| Molecular Weight | 772.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Kaempferol 3-sophoroside-7-glucoside is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 772.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Kaempferol 3-sophoroside-7-glucoside (CAS 55136-76-0), molecular formula C33H40O21 and molecular weight 772.66 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), Kaempferol 3-sophoroside-7-glucoside 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 | C33H40O21 |
| Molecular Weight | 772.66 g/mol |
| Purity | >95% |
| 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.) | 1972 |