5,6-Dimethyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione CAS 5438-24-4
| CAS No. | 5438-24-4 |
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5,6-Dimethyl-3a,4,7,7a-tetrahydroisobenzofuran-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.
5,6-Dimethyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (CAS 5438-24-4) is a high-purity analytical reference standard with the molecular formula C10H12O3 and a molecular weight of 180.20 g/mol.
5,6-Dimethyl-3a,4,7,7a-tetrahydroisobenzofuran-1,3-dione (C10H12O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C10H12O3 |
| Molecular Weight | 180.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
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- 3-Nitro-1-tosyl-1H-indole (CAS 228412-76-8)
- (4-(Aminomethyl)phenyl)(azetidin-1-yl)methanone (CAS 923183-92-0)
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- Diphenyl Phthalate-3,4,5,6-d4 (CAS 1398065-61-6)
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- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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