1617-49-8 3,7,8-Tri-O-methylellagic acid (1)Benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione, 2-hydroxy-3,7,8-trimethoxy- Combretum caffrum ELLAGIC ACID, 3,3',4-TRI-O-METHYL NSC 333299 3,3',4-O-Trimethylellagic acid CAS 1617-49-8
| CAS No. | 1617-49-8 |
| Molecular Formula | C17H12O8 |
| Molecular Weight | 344.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1617-49-8 3,7,8-Tri-O-methylellagic acid (1)Benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione, 2-hydroxy-3,7,8-trimethoxy- Combretum caffrum ELLAGIC ACID, 3,3',4-TRI-O-METHYL NSC 333299 3,3',4-O-Trimethylellagic acid (CAS 1617-49-8), molecular formula C17H12O8 and molecular weight 344.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 1617-49-8 3,7,8-Tri-O-methylellagic acid (1)Benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione, 2-hydroxy-3,7,8-trimethoxy- Combretum caffrum ELLAGIC ACID, 3,3',4-TRI-O-METHYL NSC 333299 3,3',4-O-Trimethylellagic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 344.27 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).
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), 1617-49-8 3,7,8-Tri-O-methylellagic acid (1)Benzopyrano(5,4,3-cde)(1)benzopyran-5,10-dione, 2-hydroxy-3,7,8-trimethoxy- Combretum caffrum ELLAGIC ACID, 3,3',4-TRI-O-METHYL NSC 333299 3,3',4-O-Trimethylellagic acid 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.
Physical & Chemical Properties
| Molecular Formula | C17H12O8 |
| Molecular Weight | 344.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- 2,2-Bis((propioloyloxy)methyl)propane-1,3-diyl dipropiolate (CAS 994-74-1)
- 7-Bromo-4-(tert-butoxy)-2-isopropoxybenzo[d]thiazole (CAS 1414360-77-2)
- 3-(4-Methoxyphenyl)-5-((phenylselanyl)methyl)isoxazole (CAS 833462-42-3)
- 1-(6-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-methylpyridin-3-yl)ethan-1-amine (CAS 1355223-47-0)
- 2-(Ethylthio)-1-methyl-1H-indole-3-carbaldehyde (CAS 338416-94-7)
- 1-Methyl-5,7-dioxo-4,5-dihydro-1H-pyrazolo[4,3-d]pyrimidin-6(7H)-yl benzenesulfonate (CAS 10505-22-3)
- 5-(2,4-Dimethylthiazol-5-yl)-3,4-dimethylisoxazole (CAS 61314-57-6)
- 2-Bromo-1-(2,6-difluoro-4-(trifluoromethyl)phenoxy)-3,5-difluorobenzene (CAS 2244088-65-9)
- Diethyl 7-methylquinoline-2,3-dicarboxylate (CAS 948291-10-9)
- Tert-butyl (2S,3R)-3-amino-2-methylpyrrolidine-1-carboxylate (CAS 1192608-55-1)
- 4-Propoxycinnamic acid (CAS 69033-81-4)
- 6-Amino-3-chloro-1H-indazole (CAS 21413-23-0)
- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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