4-Chlorodibenzo[b,d]thiophene CAS 69747-68-8
| CAS No. | 69747-68-8 |
| Molecular Formula | C12H7ClS |
| Molecular Weight | 218.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Chlorodibenzo[b,d]thiophene (C12H7ClS) contains sulfur-containing functionality, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 218.70 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-Chlorodibenzo[b,d]thiophene (CAS 69747-68-8), molecular formula C12H7ClS and molecular weight 218.70 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.
As a certified reference material (CRM), 4-Chlorodibenzo[b,d]thiophene 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 | C12H7ClS |
| Molecular Weight | 218.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorodibenzo Standards
- 1-Chlorodibenzo[b,d]thiophene (CAS 109014-36-0)
- 2-Chlorodibenzo[b,d]thiophene (CAS 68820-91-7)
- 1-Chlorodibenzo-p-dioxin (CAS 39227-53-7)
- 2-Chlorodibenzo-p-dioxin (CAS 39227-54-8)
- 3-Chlorodibenzo[b,d]furan-4-ol (CAS 51596-34-0)
- 7-Chlorodibenzo[b,d]furan-1-ol (CAS 2226916-90-9)
- 2-Chlorodibenzo[b,d]furan-3-amine (CAS 5833-88-5)
- 2-Chlorodibenzo[b,f]oxepine (CAS 25558-88-7)
Recommended Standards
- 4-((2-Chlorothiazol-5-yl)methyl)morpholine (CAS 339105-10-1)
- 4-Chloro-N-(4-methylthiazol-2-yl)butanamide (CAS 37762-98-4)
- 3-Isopropylbenzenesulfonyl Chloride (CAS 71530-58-0)
- 4-Chloro-N-(5-methylthiazol-2-yl)butanamide (CAS 953901-90-1)
- Methyl 5-(thiophen-2-yl)-7-(trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-3-carboxylate (CAS 1027511-26-7)
- 5-(Hydrazinylmethyl)-1-methyl-1h-imidazole (CAS 887592-51-0)
- 1-tert-Butyl 3-methyl 2-methylazetidine-1,3-dicarboxylate (CAS 1935942-15-6)
- 3-(3-Bromophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 712347-61-0)
- tert-Butyl 3-formyl-5,6-dihydroimidazo[1,5-a]pyrazine-7(8H)-carboxylate (CAS 1211593-03-1)
- 3-Chloro-4-[(4-chlorobenzyl)oxy]benzaldehyde (CAS 443124-79-6)
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- 1-(trans-4-Pentylcyclohexyl)-4-propylbenzene (CAS 82991-48-8)
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