3-(O-tolyl)dihydrofuran-2,5-dione CAS 91344-79-5
| CAS No. | 91344-79-5 |
| Molecular Formula | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(O-tolyl)dihydrofuran-2,5-dione is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(O-tolyl)dihydrofuran-2,5-dione (CAS 91344-79-5), molecular formula C11H10O3 and molecular weight 190.20 g/mol, is a CATO reference standard with documented purity and traceability.
3-(O-tolyl)dihydrofuran-2,5-dione (C11H10O3) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(O-tolyl)dihydrofuran-2,5-dione 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 | C11H10O3 |
| Molecular Weight | 190.20 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.) | 1983 |
Related O Standards
- 3-(p-Tolyl)dihydrofuran-2,5-dione (CAS 1225521-38-9)
- 3-(M-tolyl)dihydrofuran-2,5-dione (CAS 1226409-57-9)
- 1-(o-Tolyl)pyrazolidine-3,5-dione (CAS 820238-67-3)
- 1-(p-Tolyl)imidazolidine-2,4-dione (CAS 32549-31-8)
- 2-(1-(P-tolyl)cyclopropyl)acetic acid (CAS 1225504-30-2)
- 1-(m-Tolyl)cyclobutanecarboxylic acid (CAS 202737-32-4)
- 1-(P-tolyl)pentane-1,3-dione (CAS 943988-59-8)
- 2-(P-tolyl)cyclopropane-1-carbohydrazide (CAS 438219-20-6)
Recommended Standards
- 3-(Imidazo[1,5-a]pyridin-3-yl)propanoic acid (CAS 384815-08-1)
- 3-(Phenoxymethyl)-1H-1,2,4-triazol-5-amine (CAS 22819-08-5)
- 3-(Hydroxymethyl)-6-methyl-4H-chromen-4-one (CAS 63687-77-4)
- 3-(Pyrazin-2-yl)bicyclo[1.1.1]pentane-1-carboxylic acid (CAS 2025387-50-0)
- 3,6-Dichloro-4-methylpyridazine (CAS 19064-64-3)
- 4-Ethynyl-6-methylpyrimidin-2-amine (CAS 103011-51-4)
- 3-Chloro-2-cyclopropoxybenzamide (CAS 1243452-66-5)
- Methyl 5-bromo-2-(pyrrolidin-1-yl)benzoate (CAS 1131587-88-6)
- (5-Chloro-2-(trifluoromethyl)phenyl)(4-methylpiperazin-1-yl)methanone (CAS 2413441-07-1)
- Ziprasidone Impurity 14 (CAS CATO-C4X-124014)
- 2,3-Dichloro-N-(4-fluorobenzyl)aniline (CAS 1036453-69-6)
- N-((1H-Pyrazol-1-yl)methyl)-2-chloro-N-(2,4-diethylthiophen-3-yl)acetamide (CAS 87674-84-8)
- 3-(Trifluoromethyl)-[1,1-biphenyl]-4-carboxaldehyde (CAS 1214364-70-1)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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