622-21-9 1,9-Diphenylnona-1,3,6,8-tetraen-5-one 1,3,6,8-Nonatetraen-5-one, 1,9-diphenyl- Acetone, dicinnamylidene- AI3-63083 Dicinnamalacetone EINECS 210-724-0 NSC 6245 CAS 622-21-9
| CAS No. | 622-21-9 |
| Molecular Formula | C21H30O |
| Molecular Weight | 298.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
622-21-9 1,9-Diphenylnona-1,3,6,8-tetraen-5-one 1,3,6,8-Nonatetraen-5-one, 1,9-diphenyl- Acetone, dicinnamylidene- AI3-63083 Dicinnamalacetone EINECS 210-724-0 NSC 6245 (CAS 622-21-9), molecular formula C21H30O and molecular weight 298.46 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 622-21-9 1,9-Diphenylnona-1,3,6,8-tetraen-5-one 1,3,6,8-Nonatetraen-5-one, 1,9-diphenyl- Acetone, dicinnamylidene- AI3-63083 Dicinnamalacetone EINECS 210-724-0 NSC 6245 (C21H30O) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 622-21-9 1,9-Diphenylnona-1,3,6,8-tetraen-5-one 1,3,6,8-Nonatetraen-5-one, 1,9-diphenyl- Acetone, dicinnamylidene- AI3-63083 Dicinnamalacetone EINECS 210-724-0 NSC 6245 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 | C21H30O |
| Molecular Weight | 298.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
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- rac cis-9,10-Epoxystearic Acid (CAS 24560-98-3)
- Levonorgestrel EP Impurity D (CAS 32419-58-2)
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- Peptide Impurity 06 (CAS CATO-CPTD788806)
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