2-Bromo-5-iodo-3-n-octylthiophene (stabilized with Copper chip) CAS 1085181-82-3
| CAS No. | 1085181-82-3 |
| Molecular Formula | C12H18BrIS |
| Molecular Weight | 401.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Bromo-5-iodo-3-n-octylthiophene (stabilized with Copper chip) (CAS 1085181-82-3), molecular formula C12H18BrIS and molecular weight 401.14 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Bromo-5-iodo-3-n-octylthiophene (stabilized with Copper chip) (C12H18BrIS) is characterized by sulfur-containing functionality, bromine/iodine 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H18BrIS |
| Molecular Weight | 401.14 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.) | 1989 |
| Halogen Content | Br/I-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- N-(4-bromophenyl)-2-((4-bromophenyl)thio)acetamide (CAS 647031-78-5)
- N-[2-(4-bromophenyl)propan-2-yl]cyclobutanamine (CAS 1249019-72-4)
- 5-Bromo-3-(4-chlorophenyl)benzo[c]isoxazole (CAS 887-90-1)
- (2S,3S)-(2S,3R)-2-Amino-3-hydroxy-4-methylpentanoic Acid HCl Salt (CAS 5817-22-1)
- N-Nitroso Venlafaxine Impurity 51 (CAS CATO-C4X-143451)
- Bumetanide Impurity 136 (CAS CATO-C4X-1986136)
- 2-[2-(pyridin-3-ylmethoxy)phenyl]acetic acid (CAS 1513346-23-0)
- Tert-butyl 2-(1-aminoethyl)thiazole-4-carboxylate (CAS 1522483-32-4)
- (R)-(-)-3-Hydroxybutyric Acid-d (CAS 344298-82-4)
- 2-((5-Amino-1,3,4-thiadiazol-2-yl)thio)-N-isopentylacetamide (CAS 849455-58-9)
- Peptide 434 (CAS CATO-CPTD788434)
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