2-(2-(2-(2,5-Diethynyl-4-methoxyphenoxy)ethoxy)ethoxy)ethanol CAS 842120-08-5
| CAS No. | 842120-08-5 |
| Molecular Formula | C17H20O5 |
| Molecular Weight | 304.34 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.
CATO supplies 2-(2-(2-(2,5-Diethynyl-4-methoxyphenoxy)ethoxy)ethoxy)ethanol (CAS 842120-08-5), a certified reference material (molecular formula C17H20O5, MW 304.34 g/mol) for analytical method development and quality control.
2-(2-(2-(2,5-Diethynyl-4-methoxyphenoxy)ethoxy)ethoxy)ethanol (C17H20O5) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H20O5 |
| Molecular Weight | 304.34 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Diethynyl Standards
- (R)-2,2'-Diethynyl-1,1'-binaphthalene (CAS 426210-81-3)
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- 2,2'-Diethynyl-1,1'-binaphthalene (CAS 765911-39-5)
- 3,6-Diethynyl-9-(4-ethynylphenyl)-9H-carbazole (CAS 952308-20-2)
- 15,16-Diethynyl-2,3,5,6,8,9,11,12-octahydrobenzo[b][1,4,7,10,13]pentaoxacyclopentadecine (CAS 680573-26-6)
- 2,2'-(2,5-Diethynyl-1,4-phenylene)dithiophene (CAS 2701595-07-3)
- 1,4-Diethynyl-2,5-bis(hexyloxy)benzene (CAS 128424-37-3)
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Recommended Standards
- 2-(1-(4-Methoxyphenyl)-3-oxo-3-phenylpropyl)malononitrile (CAS 77609-08-6)
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- 4-amino-2,3-difluorophenol hydrochloride (CAS 1955553-21-5)
- 3-(4-Ethylpiperidin-1-yl)-1,1,1-trifluoropropan-2-ol (CAS 1339903-65-9)
- N-(2-Bromobenzyl)-N,N-dimethylethanaminium bromide (CAS 3170-72-7)
- N-(3,4-Dihydro-4-oxo-2H-1-benzothiopyran-6-yl)acetamide (CAS 103989-04-4)
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- Methyl 1-Methyl-2-oxopyrrolidine-3-carboxylate (CAS 114724-98-0)
- n-((2-Methoxypyridin-3-yl)methyl)propan-2-amine (CAS 1184451-18-0)
- D-β-Asp9-Tirzepatide (CAS CATO-CPTD788932)
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