2-Chlorodibenzo[b,d]thiophene CAS 68820-91-7
| CAS No. | 68820-91-7 |
| Molecular Formula | C12H7ClS |
| Molecular Weight | 218.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H7ClS, 2-Chlorodibenzo[b,d]thiophene contains sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 218.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 2-Chlorodibenzo[b,d]thiophene (CAS 68820-91-7), a certified reference material (molecular formula C12H7ClS, MW 218.70 g/mol) for analytical method development and quality control.
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 | 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)
- 4-Chlorodibenzo[b,d]thiophene (CAS 69747-68-8)
- 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
- 2,4,5-Trimethylbenzenesulfonyl chloride (CAS 92890-80-7)
- 2-Chloro-n-(4-ethyl-5-methyl-1,3-thiazol-2-yl)acetamide (CAS 878437-08-2)
- 2-(Tert-butylamino)-4-chlorothiazole-5-carbaldehyde (CAS 199851-22-4)
- 2-Ethyl-6-methylbenzenesulfonyl chloride (CAS 874842-44-1)
- 5-Bromo-4,6-difluoro-1H-indole-3-carboxylic acid, 97% (CAS 1638764-78-9)
- 7-(Trifluoromethyl)-2,3-dihydro-1h-inden-1-one hydrochloride (CAS 2055840-46-3)
- 2-(4-methylphenyl)-1,3-thiazole hydrobromide (CAS 1170301-39-9)
- 3-(4-Phenyloxazol-5-yl)propanenitrile (CAS 89150-03-8)
- Tert-butyl (3aS,6aR)-4-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate (CAS 1701484-85-6)
- 2-Amino-6-(4-fluorophenyl)nicotinic acid (CAS 1710675-18-5)
- tert-Butyl (3-fluoro-4-hydroxyphenyl)carbamate (CAS 859537-27-2)
- Ethylo-thiosalicylate (CAS 33441-56-4)
- 1-Butyl-1H-imidazo[4,5-c]pyridine-2-thiol (CAS 120759-68-4)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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