3-O-{2-O-[6-O-(p-hydroxyl-E-coumaroyl)-glucosyl]-(1-2)rhamnosyl kaempferol CAS 111957-48-3
| CAS No. | 111957-48-3 |
| Molecular Formula | C36H36O17 |
| Molecular Weight | 740.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-O-{2-O-[6-O-(p-hydroxyl-E-coumaroyl)-glucosyl]-(1-2)rhamnosyl kaempferol (CAS 111957-48-3), molecular formula C36H36O17 and molecular weight 740.66 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-O-{2-O-[6-O-(p-hydroxyl-E-coumaroyl)-glucosyl]-(1-2)rhamnosyl kaempferol (C36H36O17) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 19.0, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 740.66 g/mol, it falls into the 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C36H36O17 |
| Molecular Weight | 740.66 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
Recommended Standards
- Mauritianin (CAS 109008-28-8)
- Kaempferol-3-O-(2,6-di-O-trans-p-coumaroyl)-beta-D-glucopyranoside (CAS 121651-61-4)
- Avanafil Impurity 43 (CAS CATO-C4X-1118143)
- Kaempferol-3-O - α - L-rhamnose-2 '' - (6 '' '- p-coumaroyl) - β - D-glucoside (CAS CATO-C4X-32301)
- (3-Bromo-2,5-dimethylphenyl)methanol (CAS 247575-34-4)
- 4-[(Methylsulfamoyl)methyl]benzoic acid (CAS 1099184-20-9)
- (3-(3,4-Dimethylphenyl)-1-phenyl-1H-pyrazol-4-yl)methanol (CAS 955972-07-3)
- 3-(Furan-2-yl)-4-methyl-1h-pyrazol-5-amine (CAS 1187766-98-8)
- (2,5-Dimethylthiophen-3-yl)methanamine hydrochloride (CAS 1332530-48-9)
- 5-(Difluoromethoxy)pyridin-3-amine hydrochloride (CAS 2089376-95-2)
- 4-(2-Trityl-2H-tetrazol-5-yl)phenol (CAS 885278-37-5)
- 1-(6-Oxo-1,6-dihydropyridazine-3-carbonyl)pyrrolidine-3-carboxylic acid (CAS 1273709-54-8)
- Atomoxetine Impurity 49 (CAS CATO-C4X-155049)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
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