Dithieno[2,3-b:2',3'-d]thiophene CAS 236-65-7
| CAS No. | 236-65-7 |
| Molecular Formula | C8H4S3 |
| Molecular Weight | 196.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Dithieno[2,3-b:2',3'-d]thiophene (C8H4S3) is characterized by sulfur-containing functionality, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Dithieno[2,3-b:2',3'-d]thiophene (CAS 236-65-7), a certified reference material (molecular formula C8H4S3, MW 196.31 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.
As a certified reference material (CRM), Dithieno[2,3-b:2',3'-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 | C8H4S3 |
| Molecular Weight | 196.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 3 |
Related Dithieno Standards
- Dithieno[2,3-b:3,2-d]thiophene (CAS 236-63-5)
- 3593-75-7 Dithieno[3,2-b:2 inverted exclamation marka,3 inverted exclamation marka-d]thiophene (CAS 3593-75-7)
- 2H-Dithieno[3,2-e:2′,3′-g]benzotriazole10,13-dithia-3,4,5-triazatetracyclo[10.3.0.0²,⁶.0⁷,¹¹]pentadeca-1(12),2,5,7(11),8,14-hexaene (CAS 1415761-30-6)
- Dithieno[3,2-c:2’,3’-e]oxepine-4,6-dione (CAS 1043023-52-4)
- Dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxaldehyde (CAS 67061-73-8)
- Dithieno[3,2-b:2',3'-d]thiophene-2,6-dicarboxylic acid (CAS 502764-53-6)
Recommended Standards
- Benzyl(2-ethoxyethyl)sulfane (CAS 64080-56-4)
- 5-Propyl-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-amine (CAS 91617-60-6)
- methyl[(2-methyl-4,5,6,7-tetrahydro-1,3-benzothiazol-4-yl)methyl]amine (CAS 77528-58-6)
- 5-(tert-Butyl)-2-(methylthio)phenol (CAS 66624-05-3)
- Ethyl 3-((4-(5-chloro-2-methylphenyl)piperazin-1-yl)sulfonyl)benzo[b]thiophene-2-carboxylate (CAS 932520-35-9)
- Moxifloxacin Hydrochloride Monohydrate (CAS 192927-63-2)
- 1-(3-Fluoro-5-(trifluoromethyl)phenyl)cyclopropanecarboxylic acid (CAS 1260780-99-1)
- 4,4'-((2-Methyl-2-((pyridin-4-yloxy)methyl)propane-1,3-diyl)bis(oxy))dipyridine (CAS 1228960-86-8)
- 3-Oxoindane-5-carbonitrile (CAS 69975-66-2)
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- Myristoyl Pentapeptide-4 (CAS 1392416-25-9)
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