Ethanol, 2,2'-iminobis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane] CAS 28680-87-7
| CAS No. | 28680-87-7 |
| Molecular Formula | C21H24O4 |
| Molecular Weight | N/A |
| 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.
Ethanol, 2,2'-iminobis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane] (CAS 28680-87-7) is a high-purity analytical reference standard with the molecular formula C21H24O4C4H11NO2 and a molecular weight of 445.56 g/mol.
Structurally, Ethanol, 2,2'-iminobis-, polymer with 2,2'-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane] (C21H24O4C4H11NO2) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 445.56 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C21H24O4 C4H11NO2 |
| Molecular Weight | 445.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-([1,1′-Biphenyl]-4-yloxy)-7-hydroxy-4H-1-benzopyran-4-one (CAS 370841-90-0)
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- 4-[(2,5-Dichlorophenyl)carbamoyl]phenyl N,N-dimethylsulfamate (CAS 338396-28-4)
- (E)-4-(1H-pyrazol-1-yl)but-2-enoic acid (CAS 1251453-32-3)
- 2-Amino-3,4-dihydro-2H-naphthalen-1-one HCl (CAS 6298-95-9)
- 1-(5-Bromonaphthalen-1-yl)ethan-1-one (CAS 58149-87-4)
- Methyl 2-hydroxy-5-oxo-5,6,7,8-tetrahydroquinoline-6-carboxylate (CAS 1092301-57-9)
- 73568-44-2 6-Chloro-2-oxo-1,2-dihydroquinoline-3-carbaldehyde DTXSID90501117 (CAS 73568-44-2)
- N,N'-(1,4-Phenylene)bis(2,5-dichlorobenzamide) (CAS 548779-60-8)
- [α-Glu](Side Chain)-Semaglutide (CAS CATO-C4X-2226159)
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