2,5-Dibromo-3-octadecylthiophene CAS 205235-01-4
| CAS No. | 205235-01-4 |
| Molecular Formula | C22H38Br2S |
| Molecular Weight | 494.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 494.41 g/mol gives 2,5-Dibromo-3-octadecylthiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,5-Dibromo-3-octadecylthiophene (CAS 205235-01-4) is a high-purity analytical reference standard with the molecular formula C22H38Br2S and a molecular weight of 494.41 g/mol.
The molecular framework of 2,5-Dibromo-3-octadecylthiophene (C22H38Br2S) is characterized by sulfur-containing functionality, bromine substitution. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), 2,5-Dibromo-3-octadecylthiophene 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 | C22H38Br2S |
| Molecular Weight | 494.41 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2015 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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- 1,3-Dibromo-5-[2-(3,5-dibromophenyl)ethynyl]benzene (CAS 448895-60-1)
- 2-(6,8-Dibromo-2-methyl-4-oxo-1-phenyl-1,2-dihydroquinazolin-3(4H)-yl)ethyl 2-aminoacetate (CAS 110022-76-9)
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Recommended Standards
- 2-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-ethylphenyl)acetamide (CAS 477330-06-6)
- Ethyl 4-{[2-(3,4-dichlorobenzamido)phenyl]sulfanyl}-2-(methylsulfanyl)pyrimidine-5-carboxylate (CAS 439111-37-2)
- 2-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3,4-dimethylphenyl)acetamide (CAS 477330-33-9)
- N-(2-Bromo-4-methylphenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-68-6)
- ethyl (E)-2-azido-3-(2,3-dimethoxyphenyl)prop-2-enoate (CAS 185212-30-0)
- 3,4-Dimethyl-2-propoxybenzaldehyde (CAS 1427024-93-8)
- 2-(4-Oxo-2-thioxo-1,4-dihydrobenzofuro[3,2-d]pyrimidin-3(2H)-yl)acetic acid (CAS 951304-87-3)
- 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-1-benzopyran-6-carboxylic Acid (CAS 65372-54-5)
- 2-Bromo-N,N-diethylethylamine Hydrobromide (CAS 1069-72-3)
- 3-[(2-Methoxyethoxy)methyl]phenylboronic Acid (CAS 1256358-61-8)
- 2-Methylglutaric Acid (CAS 617-62-9)
- Ethyl (S)-morpholine-3-carboxylate (CAS 132946-21-5)
- 2-(2-Propyn-1-yloxy)butanoic acid (CAS 1157984-71-8)
- a2,3-Sialylglycopeptide (CAS 189035-43-6)
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