| CAS No. | 40477-45-0 |
| Molecular Formula | C4Br2Cl2S |
| Molecular Weight | 310.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 310.82 g/mol gives 3,4-Dibromo-2,5-dichlorothiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3,4-Dibromo-2,5-dichlorothiophene (CAS 40477-45-0) is a high-purity analytical reference standard with the molecular formula C4Br2Cl2S and a molecular weight of 310.82 g/mol.
Structurally, 3,4-Dibromo-2,5-dichlorothiophene (C4Br2Cl2S) contains sulfur-containing functionality, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 310.82 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.
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.
CATO manufactures 3,4-Dibromo-2,5-dichlorothiophene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C4Br2Cl2S |
| Molecular Weight | 310.82 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |