5,5′-Dibromo-3,3′-bis[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-2,2′-bithiophene CAS 1974310-58-1
| CAS No. | 1974310-58-1 |
| Molecular Formula | C22H32Br2O8S2 |
| Molecular Weight | 648.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5,5′-Dibromo-3,3′-bis[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-2,2′-bithiophene (C22H32Br2O8S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 648.42 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5,5′-Dibromo-3,3′-bis[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]-2,2′-bithiophene (CAS 1974310-58-1), molecular formula C22H32Br2O8S2 and molecular weight 648.42 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C22H32Br2O8S2 |
| Molecular Weight | 648.42 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 2 |
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