2,5-Dibromo-3-phenylthiophene CAS 19698-46-5
| CAS No. | 19698-46-5 |
| Molecular Formula | C10H6Br2S |
| Molecular Weight | 318.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2,5-Dibromo-3-phenylthiophene (C10H6Br2S) 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 318.03 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2,5-Dibromo-3-phenylthiophene (CAS 19698-46-5), molecular formula C10H6Br2S and molecular weight 318.03 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C10H6Br2S |
| Molecular Weight | 318.03 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.) | 1962 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromo Standards
- 3,6-Dibromo-2-isopropylpyrazolo[1,5-a]pyridine (CAS 141401-54-9)
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- 3,6-Dibromo-1,8-naphthyridine-2,7-diamine (CAS 1242339-48-5)
- 3,7-Dibromo-2,6-dihydroxynaphthalene (CAS 1227743-83-0)
- 1,5-Dibromo-2,6-dihydroxynaphthalene (CAS 132178-78-0)
- 3,4-Dibromo-1-(pyridin-3-yl)-1H-pyrrol-2(5H)-one (CAS 1706461-36-0)
- N-(2,4-dibromo-6-cyanophenyl)acetamide (CAS 189635-00-5)
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Recommended Standards
- 3-Iodo-5,5,6,6,6-pentafluorohexan-1-ol (CAS 526223-11-0)
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- 1-Bromo-2-fluoro-4-nitro-5-(2,2,2-trifluoroethoxy)benzene (CAS 1820716-82-2)
- 1,2,3,4-Tetrachloro-9,10-dihydroanthracene (CAS 61601-17-0)
- Methyl 8-fluoroimidazo[1,2-a]pyridine-7-carboxylate (CAS 628691-97-4)
- (1S,4S,4aS,6S,8aS)-4-Isopropyl-1,6-dimethyldecahydronaphthalene (CAS 483-73-8)
- 5-Chloromethyl-3-methyl-isoxazole-4-carboxylic acid ethyl ester (CAS 500906-24-1)
- 1-(2'-Hydroxy-[1,1'-biphenyl]-4-yl)ethan-1-one (CAS 21849-93-4)
- Methyl 4-((2-(5-chloro-2-fluorophenyl)-5-methoxypyrimidin-4-yl)amino)nicotinate (CAS 674793-50-1)
- 5-Bromo-4,6-dimethyl-2-morpholinonicotinonitrile (CAS 866019-05-8)
- CAY10592 (CAS 685139-10-0)
- N,N-dimethyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxamide (CAS 942070-94-2)
- 2-(3-Chloro-5-nitrophenyl)acetic acid (CAS 37777-69-8)
- Bradykinin-Like Neuropeptide (Aplysia californica) (H-1654.0001) (CAS 165174-60-7)
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