7,7'-Dichloro-3H,3'H-[2,2'-bibenzo[b]thiophenylidene]-3,3'-dione CAS 6371-11-5
| CAS No. | 6371-11-5 |
| Molecular Formula | C16H6Cl2O2S2 |
| Molecular Weight | 365.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7,7'-Dichloro-3H,3'H-[2,2'-bibenzo[b]thiophenylidene]-3,3'-dione is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7,7'-Dichloro-3H,3'H-[2,2'-bibenzo[b]thiophenylidene]-3,3'-dione (CAS 6371-11-5) is a high-purity analytical reference standard with the molecular formula C16H6Cl2O2S2 and a molecular weight of 365.25 g/mol.
The molecular framework of 7,7'-Dichloro-3H,3'H-[2,2'-bibenzo[b]thiophenylidene]-3,3'-dione (C16H6Cl2O2S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 7,7'-Dichloro-3H,3'H-[2,2'-bibenzo[b]thiophenylidene]-3,3'-dione 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.
Physical & Chemical Properties
| Molecular Formula | C16H6Cl2O2S2 |
| Molecular Weight | 365.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
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Recommended Standards
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- Methyl 4-(aminomethyl)-6-iodopicolinate (CAS 1393547-02-8)
- Pyridin-2-ol (CAS 72762-00-6)
- 4-Amino-n-ethylpiperidine-1-carboxamide hydrochloride (CAS 1158357-04-0)
- 2-(2-(Isobutylamino)-2-oxoethoxy)benzamide (CAS 923238-18-0)
- 3-(Methyl(phenyl)amino)pyrrolidine-1-carboxamide (CAS 20984-63-8)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-(tert-butoxy)phenyl)propanoic acid (CAS 204384-70-3)
- Ozefloxacin Impurity 8 (CAS 103877-38-9)
- N-(4-bromo-3-methylphenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 329079-96-1)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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