4,4'-((1E,1'E)-(2-Methoxy-1,4-phenylene)bis(ethene-2,1-diyl))diphenol CAS 863918-78-9
| CAS No. | 863918-78-9 |
| Molecular Formula | C23H20O3 |
| Molecular Weight | 344.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4'-((1E,1'E)-(2-Methoxy-1,4-phenylene)bis(ethene-2,1-diyl))diphenol 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.
CATO supplies 4,4'-((1E,1'E)-(2-Methoxy-1,4-phenylene)bis(ethene-2,1-diyl))diphenol (CAS 863918-78-9), a certified reference material (molecular formula C23H20O3, MW 344.40 g/mol) for analytical method development and quality control.
The molecular framework of 4,4'-((1E,1'E)-(2-Methoxy-1,4-phenylene)bis(ethene-2,1-diyl))diphenol (C23H20O3) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C23H20O3 |
| Molecular Weight | 344.40 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Recommended Standards
- 4,4'-(((3R,4R)-Tetrahydrofuran-3,4-diyl)bis(methylene))bis(2-methoxyphenol) (CAS 29388-33-8)
- 5-(tert-Butyl)-3-(dibenzo[b,d]furan-4-yl)-2-hydroxybenzaldehyde (CAS 402576-63-0)
- 4-(3-Fluorophenyl)-2,2-dimethyl-5-(4-(methylsulfinyl)phenyl)furan-3(2H)-one (CAS 301693-70-9)
- 5-Amino-N-{4-[(difluoromethyl)sulfanyl]phenyl}-2-methylbenzene-1-sulfonamide (CAS 326866-51-7)
- Tris(2,2,3,3,3-pentafluoropropyl)phosphate (CAS 25476-41-9)
- tert-Butyl (1-aminopentan-3-yl)carbamate (CAS 1131594-84-7)
- 2-((1-(4-Bromophenyl)-1H-pyrrol-3-yl)methylene)malononitrile (CAS 439094-32-3)
- Propranolol Impurity 41 (CAS CATO-C4X-151941)
- 2-Amino-4-isopropyl-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile (CAS 443646-94-4)
- 4-Amino-N-(p-tolyl)benzamide (CAS 955-96-4)
- Methyl 2-(3-(4-(trifluoromethyl)phenyl)-1H-1,2,4-triazol-1-yl)acetate (CAS 1416339-35-9)
- Lamotrigine (CAS 84057-84-1)
- 1-Methyl-N-(4-morpholinophenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 1206993-31-8)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
Why CATO?
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