1,3-Diethyl 2-[(3-phenoxyphenyl)methylidene]propanedioate CAS 866153-65-3
| CAS No. | 866153-65-3 |
| Molecular Formula | C20H20O5 |
| Molecular Weight | 340.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,3-Diethyl 2-[(3-phenoxyphenyl)methylidene]propanedioate (CAS 866153-65-3), a certified reference material (molecular formula C20H20O5, MW 340.37 g/mol) for analytical method development and quality control.
Structurally, 1,3-Diethyl 2-[(3-phenoxyphenyl)methylidene]propanedioate (C20H20O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 340.37 g/mol, it falls into the moderately-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).
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), 1,3-Diethyl 2-[(3-phenoxyphenyl)methylidene]propanedioate 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 | C20H20O5 |
| Molecular Weight | 340.37 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
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Recommended Standards
- 1,3,5-Triphenyl-1H-pyrazole-4-carboxylic acid (CAS 53685-84-0)
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- 1,3,4-Triphenyl-1H-pyrazole-5-carboxylic acid (CAS 30020-54-3)
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- 2-Amino-5-fluorobenzoxazole (CAS 1682-39-9)
- 1-(5-Bromofuran-2-carbonyl)-3-methylpyrrolidine-3-carboxylic acid (CAS 1272817-34-1)
- TPPU (CAS 1222780-33-7)
- Empagliflozin Impurity 281 (CAS 1096342-71-0)
- (S)-3-Amino-1-methylpiperidine Dihydrochloride (CAS 1157849-51-8)
- 4-Bromo-1-butyl-3-((3,3,3-trifluoropropoxy)methyl)-1H-pyrazole (CAS 1856075-25-6)
- tert-Butyl 2-(((S)-2-amino-N-cyclopropyl-3-methylbutanamido)methyl)piperidine-1-carboxylate (CAS 1354026-66-6)
- Dimethyl 1,1-[oxydi(methylene)]bis(1H-pyrazole-3-carboxylate) (CAS 1858251-14-5)
- Pancreatic Polypeptide (human) trifluoroacetate salt (CAS 75976-10-2)
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