13389-88-3 5-oxo-2-phenyltetrahydrofuran-3-carboxylic acid Tetrahydro-5-oxo-2-phenylfuran-3-carboxylic acid CAS 13389-88-3
| CAS No. | 13389-88-3 |
| Molecular Formula | C11H10O4 |
| Molecular Weight | 206.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
13389-88-3 5-oxo-2-phenyltetrahydrofuran-3-carboxylic acid Tetrahydro-5-oxo-2-phenylfuran-3-carboxylic acid (CAS 13389-88-3) is a high-purity analytical reference standard with the molecular formula C11H10O4 and a molecular weight of 206.19 g/mol.
13389-88-3 5-oxo-2-phenyltetrahydrofuran-3-carboxylic acid Tetrahydro-5-oxo-2-phenylfuran-3-carboxylic acid (C11H10O4) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H10O4 |
| Molecular Weight | 206.19 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.) | 1960 |
Related oxo Standards
- 2-Oxo-3-phenyltetrahydrofuran-3-carboxylic acid (CAS 19340-59-1)
- 5-Oxo-3-phenyltetrahydrofuran-3-carboxamide (CAS 65939-71-1)
- 5-Phenyltetrahydrofuran-2-carboxylic acid (CAS 1312904-12-3)
- 3-Phenyltetrahydrofuran-2-carboxylic acid (CAS 1824423-81-5)
- 2-Phenyltetrahydrofuran-2-carboxylic acid (CAS 19679-84-6)
- 2-Phenyltetrahydrofuran-3-carboxylic acid (CAS 866914-25-2)
- (2-Phenyltetrahydrofuran-3-yl)methanamine (CAS 1334149-17-5)
- 3-Phenyltetrahydrofuran-3-carbonitrile (CAS 1211595-32-2)
Recommended Standards
- Methyl 4-oxoisochromane-5-carboxylate (CAS 1337841-67-4)
- (2,4,5-Trifluorophenyl)thiourea (CAS 1340519-84-7)
- Methyl 4-oxoisochromane-6-carboxylate (CAS 1336947-02-4)
- 2-(Furan-2-carbonyl)cyclohexane-1,3-dione (CAS 1356596-31-0)
- N-Butyl-3-hydroxy-5-nitrobenzamide (CAS 1881289-46-8)
- Trans-1-(4-aminocyclohexyl)-3-isopropylurea hydrochloride (CAS 2204561-95-3)
- Methyl 2,3-difluoro-4-nitrobenzoate (CAS 1803786-91-5)
- Ethyl 5-chlorooctafluoropentanoate (CAS 1555-27-7)
- 4-Bromo-2-(difluoromethyl)benzo[b]thiophene (CAS 1785254-82-1)
- 4-(2,4-Dimethylphenyl)thiazole-2-carbaldehyde (CAS 383143-90-6)
- 4-Chloro-N,N-diisopropyl-3-nitrobenzamide (CAS 352443-08-4)
- N-(3-nitrophenyl)isonicotinamide (CAS 68279-91-4)
- 6-Bromo-N-cyclopropylpyridin-3-amine (CAS 1209460-16-1)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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