[1,3]Dioxolo[4,5-f]isobenzofuran-5(7H)-one CAS 4792-36-3
| CAS No. | 4792-36-3 |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
[1,3]Dioxolo[4,5-f]isobenzofuran-5(7H)-one (CAS 4792-36-3) is a high-purity analytical reference standard with the molecular formula C9H6O4 and a molecular weight of 178.14 g/mol.
Based on its molecular formula C9H6O4, [1,3]Dioxolo[4,5-f]isobenzofuran-5(7H)-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 1958 |
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- 5H-[1,3]dioxolo[4,5-f]indol-7-amine (CAS 1443285-84-4)
- 3-([1,3]Dioxolo[4,5-b]pyridin-6-yl)propan-1-amine (CAS 1260670-93-6)
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Recommended Standards
- (R)-5-Phenyl-1,3-dioxolane-2,4-dione (CAS 54256-33-6)
- [2,2'-Bifuran]-5-carboxylic acid (CAS 856122-70-8)
- (E)-2-cyano-3-(4-methyloxazol-2-yl)acrylic acid (CAS 2044707-28-8)
- 1-(5-Methylisoxazol-3-yl)-1H-pyrrole-2,5-dione (CAS 89143-12-4)
- Cyclopentyl carbamate (CAS 4144-77-8)
- N-(2-Chloro-4-fluorobenzyl)phthalimide (CAS 536761-09-8)
- tert-Butyl (2-(Hydroxymethyl)butyl)carbamate (CAS 1335139-43-9)
- Ramelteon Impurity 51 (CAS 896736-20-2)
- 4-(2,3-Dichlorobenzyl)piperidin-4-amine (CAS 919112-77-9)
- 4-(tert-Butyl) 1-methyl 2-(2-chloroallyl)succinate (CAS 192516-46-4)
- 5-Bromoquinolin-8-ol hydrobromide (CAS 93933-42-7)
- Lithium deuteride (CAS 13587-16-1)
- 4-((1-Benzylpiperidin-4-yl)amino)-4-oxobutanoic acid (CAS 342021-19-6)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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