3'-Bromo-2,2':5',2''-terthiophene CAS 105125-00-6
| CAS No. | 105125-00-6 |
| Molecular Formula | C12H7BrS3 |
| Molecular Weight | 327.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3'-Bromo-2,2':5',2''-terthiophene (CAS 105125-00-6), molecular formula C12H7BrS3 and molecular weight 327.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3'-Bromo-2,2':5',2''-terthiophene (C12H7BrS3) is characterized by sulfur-containing functionality, bromine substitution, an aromatic ring system. 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 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.
As a certified reference material (CRM), 3'-Bromo-2,2':5',2''-terthiophene 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.
Physical & Chemical Properties
| Molecular Formula | C12H7BrS3 |
| Molecular Weight | 327.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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.) | 1987 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 3 |
Related Bromo Standards
- 5-Bromo-2,2':5',2''-terthiophene (CAS 94581-95-0)
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- 5-bromo-1-[[2-(trimethylsilyl)ethoxy]methyl]-1H-Pyrrolo[2,3-b]pyridine (CAS 757978-23-7)
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Recommended Standards
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- 2-Methyl-3-(5-methyl-3-(trifluoromethyl)-1h-pyrazol-1-yl)propan-1-amine (CAS 1006342-58-0)
- Ethyl 7-bromothieno[2,3-c]pyridine-2-carboxylate (CAS 1835288-51-1)
- 4-Bromo-5-fluorothiophene-2-carboxylic acid (CAS 2090639-28-2)
- 5-Aminooctahydroquinolin-2(1H)-one (CAS 1706461-80-4)
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- Buspirone N-Oxide (CAS 220747-81-9)
- Exenatide (CAS 141758-74-9)
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