Atalantoflavone CAS 119309-02-3
| CAS No. | 119309-02-3 |
| Molecular Formula | C20H16O5 |
| Molecular Weight | 336.34 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.
Atalantoflavone (CAS 119309-02-3), molecular formula C20H16O5 and molecular weight 336.34 g/mol, is a CATO reference standard with documented purity and traceability.
Atalantoflavone (C20H16O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C20H16O5 |
| Molecular Weight | 336.34 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Recommended Standards
- MM 47755 (CAS 117620-87-8)
- 5,7-Dihydroxy-2',2'-dimethyl-2'H,4H-[3,6'-bichromen]-4-one (CAS 121747-89-5)
- 3-(3-(Benzo[d][1,3]dioxol-5-yl)-1-phenyl-1H-pyrazol-4-yl)propanoic acid (CAS 1171384-62-5)
- Tilifodiolide (CAS 126724-95-6)
- 3-(5-Methyl-1,3-dioxo-2,3-dihydro-1h-isoindol-2-yl)propanoic acid (CAS 346704-27-6)
- 3-((Furan-2-ylmethyl)amino)-2,3-dihydrothiophene 1,1-dioxide (CAS 747405-58-9)
- 2-(3,4-Dihydroisoquinolin-1-yl)acetamide (CAS 19622-86-7)
- DPC 083 (CAS 214287-99-7)
- (R)-Methyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)pent-4-ynoate (CAS 885104-38-1)
- (4-(Bis(benzo[d][1,3]dioxol-5-yl)methyl)piperidin-1-yl)(1H-1,2,4-triazol-1-yl)methanone (CAS 1515855-97-6)
- (S)-tert-Butyl (2-aminobutyl)carbamate (CAS 1336411-15-4)
- 5-Fluoro-2-nitrobenzoic Acid (CAS 320-98-9)
- tert-Butyl tetrahydro-1H-furo[3,4-c]pyrrole-5(3H)-carboxylate (CAS 1935134-72-7)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
Why CATO?
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