4-(Methylthio)isobenzofuran-1,3-dione CAS 15533-50-3
| CAS No. | 15533-50-3 |
| Molecular Formula | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 194.21 g/mol gives 4-(Methylthio)isobenzofuran-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-(Methylthio)isobenzofuran-1,3-dione (CAS 15533-50-3), a certified reference material (molecular formula C9H6O3S, MW 194.21 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4-(Methylthio)isobenzofuran-1,3-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 194.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 4-(Methylthio)isobenzofuran-1,3-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 | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(tert-Butyl)indoline (CAS 54856-58-5)
- Ethyl 3-(furan-2-yl)-3-hydroxypropanoate (CAS 25408-95-1)
- Ethyl (4-mercaptophenyl)carbamate (CAS 73443-73-9)
- 2-(2,6-dioxo-3-piperidyl)-4-(4-hydroxybutylamino)isoindoline-1,3-dione (CAS 2368940-93-4)
- 3-((2-Chloro-4-fluorobenzyl)thio)-5-(trifluoromethyl)-4H-1,2,4-triazole (CAS 1706455-65-3)
- 5-Cyano-1-benzothiophene-2-carboxylic acid (CAS 154650-76-7)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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