5-bromothieno[3,2-b]thiophene CAS 25121-82-8
| CAS No. | 25121-82-8 |
| Molecular Formula | C6H3BrS2 |
| Molecular Weight | 219.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-bromothieno[3,2-b]thiophene (CAS 25121-82-8) is a high-purity analytical reference standard with the molecular formula C6H3BrS2 and a molecular weight of 219.12 g/mol.
Structurally, 5-bromothieno[3,2-b]thiophene (C6H3BrS2) contains sulfur-containing functionality, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 219.12 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H3BrS2 |
| Molecular Weight | 219.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 2 |
Related bromothieno Standards
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Recommended Standards
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