| CAS No. | 502-70-5 |
| Molecular Formula | C20H24O2 |
| Molecular Weight | 296.40 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.
2,4,6,8,10,12,14-Hexadecaheptaenedial,2,6,11,15-tetramethyl-, (2E,4E,6E,8E,10E,12E,14E)- 502-70-5 CTK4J2359 (CAS 502-70-5) is a high-purity analytical reference standard with the molecular formula C20H24O2 and a molecular weight of 296.40 g/mol.
Owing to a steroid core, a hydroxyl group, an ether linkage, 2,4,6,8,10,12,14-Hexadecaheptaenedial,2,6,11,15-tetramethyl-, (2E,4E,6E,8E,10E,12E,14E)- 502-70-5 CTK4J2359 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 2,4,6,8,10,12,14-Hexadecaheptaenedial,2,6,11,15-tetramethyl-, (2E,4E,6E,8E,10E,12E,14E)- 502-70-5 CTK4J2359 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 | C20H24O2 |
| Molecular Weight | 296.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |