5,5-Dioxo-5H-dibenzo[b,d]thiophene-3,7-dicarboxylic acid CAS 23613-32-3
| CAS No. | 23613-32-3 |
| Molecular Formula | C14H8O6S |
| Molecular Weight | 304.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5,5-Dioxo-5H-dibenzo[b,d]thiophene-3,7-dicarboxylic acid (CAS 23613-32-3), a certified reference material (molecular formula C14H8O6S, MW 304.27 g/mol) for analytical method development and quality control.
The molecular framework of 5,5-Dioxo-5H-dibenzo[b,d]thiophene-3,7-dicarboxylic acid (C14H8O6S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic 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 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).
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.
CATO manufactures 5,5-Dioxo-5H-dibenzo[b,d]thiophene-3,7-dicarboxylic acid 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 | C14H8O6S |
| Molecular Weight | 304.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Sulfur Atoms | 1 |
Related Dioxo Standards
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Recommended Standards
- 5-(M-tolyl)-1-(3-(trifluoromethyl)phenyl)-1H-tetrazole (CAS 338411-61-3)
- dimethyl (1-(tert-butyldimethylsilyl)-1H-pyrrolo[2,3-b]pyridin-5-yl)boronate (CAS 754214-61-4)
- 4-Phenyl-2-(3-(trifluoromethyl)phenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 64124-10-3)
- N-((3-(4-Fluorophenyl)-2-oxooxazolidin-5-yl)methyl)furan-2-carboxamide (CAS 954617-42-6)
- Arjunetin (CAS 31297-79-7)
- 4-Nitropyridine hydrate (CAS 1951439-25-0)
- n-(Sec-butyl)-1-methylpiperidin-4-amine (CAS 1019551-89-3)
- (R)-2-(Fmoc-amino)-3-cyclopentylpropanoic Acid (CAS 1262802-59-4)
- Ethyl 2-cyclobutylpyrimidine-5-carboxylate (CAS 1447608-11-8)
- 2-(azetidin-3-yl)-2-methyl-propanenitrile;hydrochloride (CAS 2551118-14-8)
- 1-(2,2,2-Trifluoroethyl)piperidin-4-amine dihydrochloride (CAS 1177271-15-6)
- 2-((4-(2,4-Dimethylphenyl)piperazin-1-yl)methyl)-5-hydroxy-4H-pyran-4-one (CAS 1190256-44-0)
- trans-3-aminocyclobutanecarbonitrile hydrochloride (CAS 1638764-93-8)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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