(E)-1,2-bis(3-bromothiophen-2-yl)ethene CAS 40032-88-0
| CAS No. | 40032-88-0 |
| Molecular Formula | C10H6Br2S2 |
| Molecular Weight | 350.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (E)-1,2-bis(3-bromothiophen-2-yl)ethene (CAS 40032-88-0), a certified reference material (molecular formula C10H6Br2S2, MW 350.09 g/mol) for analytical method development and quality control.
Structurally, (E)-1,2-bis(3-bromothiophen-2-yl)ethene (C10H6Br2S2) contains sulfur-containing functionality, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 350.09 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H6Br2S2 |
| Molecular Weight | 350.09 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 2 |
Recommended Standards
- 2,7-dibromo-9-fluorenone (CAS 14348-75-5)
- (E)-1,2-bis(5-bromothiophen-2-yl)ethene (CAS 24844-36-8)
- 1-Bromo-2-(2-bromo-1-(isopentyloxy)ethyl)benzene (CAS 1344295-60-8)
- 1,3-Dibromo-2-butoxy-5-isopropylbenzene (CAS 2379321-57-8)
- 4-Chloro-6-fluoroquinolin-8-amine (CAS 190140-15-9)
- 3-Cyclohexyl-4-ethyl-1h-pyrazol-5-amine (CAS 1187561-78-9)
- 2-(3,5-Dimethylphenyl)-3-methylbutanoic acid (CAS 1226203-93-5)
- 6-Methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid (CAS 32092-24-3)
- Bis(ethylenediamine)platinum(II) chloride (CAS 21430-85-3)
- N-(Furan-2-ylmethyl)-2-methyl-N-(2-(thiophen-2-yl)ethyl)benzamide (CAS 1396715-76-6)
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- 2,4-Dioxo-1,2,3,4-tetrahydroquinazoline-6-sulfonic acid (CAS 78278-04-3)
- (Z)-Cycloheptadec-9-en-1-one (CAS 542-46-1)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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