2,3,7,8-Tetrachlorodibenzo[b,d]thiophene CAS 133513-17-4
| CAS No. | 133513-17-4 |
| Molecular Formula | C12H4Cl4S |
| Molecular Weight | 322.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2,3,7,8-Tetrachlorodibenzo[b,d]thiophene 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.
2,3,7,8-Tetrachlorodibenzo[b,d]thiophene (CAS 133513-17-4) is a high-purity analytical reference standard with the molecular formula C12H4Cl4S and a molecular weight of 322.04 g/mol.
The molecular framework of 2,3,7,8-Tetrachlorodibenzo[b,d]thiophene (C12H4Cl4S) is characterized by sulfur-containing functionality, chlorine substitution, an aromatic ring system. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H4Cl4S |
| Molecular Weight | 322.04 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Tetrachlorodibenzo Standards
- 3,4,6,7-Tetrachlorodibenzo[b,d]thiophene (CAS 133513-18-5)
- 2,3,6,7-Tetrachlorodibenzo[b,d]thiophene (CAS 133513-19-6)
- 2,4,6,8-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-49-0)
- 1,4,6,9-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-50-3)
- 1,3,7,9-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-51-4)
- 1,3,7,8-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-52-5)
- 1,2,6,9-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-53-6)
- 1,2,8,9-Tetrachlorodibenzo[b,d]thiophene (CAS 134705-54-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com