4,5-Dimethylfuran-2-carboxylic Acid CAS 89639-83-8
| CAS No. | 89639-83-8 |
| Molecular Formula | C7H8O3 |
| Molecular Weight | 140.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,5-Dimethylfuran-2-carboxylic Acid (CAS 89639-83-8), molecular formula C7H8O3 and molecular weight 140.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4,5-Dimethylfuran-2-carboxylic Acid is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 140.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H8O3 |
| Molecular Weight | 140.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
Related Dimethylfuran Standards
- 3,4-dimethylfuran-2-carboxylic acid (CAS 78405-59-1)
- ((2,5-Dimethylfuran-3-yl)methyl)hydrazine (CAS 1016500-11-0)
- (2,4-Dimethylfuran-3-yl)boronic acid (CAS 1289207-52-8)
- (R)-1-(2,5-Dimethylfuran-3-yl)ethan-1-amine (CAS 1213054-88-6)
- (S)-1-(2,5-Dimethylfuran-3-yl)ethan-1-amine (CAS 1213117-21-5)
- 1-(2,4-Dimethylfuran-3-yl)ethanamine (CAS 1523767-60-3)
- 1-(2,5-Dimethylfuran-3-yl)ethan-1-amine (CAS 317830-20-9)
- 2,5-Dimethylfuran-3-carboxamide (CAS 66806-31-3)
Recommended Standards
- 4,5-Dimethoxypyridazine (CAS 55271-48-2)
- 4,5-Dimethyloxazole-2-carboxamide (CAS 79495-06-0)
- 4,5,6,7-Tetrahydroisoxazolo[5,4-c]pyridin-3(2H)-one (CAS 64603-91-4)
- 4,6-Dimethoxypyrimidine (CAS 5270-94-0)
- 3H-1,2,3-Triazolo[4,5-c]pyridine (CAS 273-05-2)
- 2-Methyl-1-oxo-1-phenylpropan-2-yl methanesulfonate (CAS 17231-17-3)
- (5-Methyl-2-(pentyloxy)phenyl)methanol (CAS 1343658-71-8)
- 1-(4-Hydroxy-2,6-dimethoxyphenyl)ethanone (CAS 13246-14-5)
- 4-((3,4-Dichlorophenyl)thio)butan-1-amine (CAS 1082501-54-9)
- 2-(2-Methylbut-3-yn-2-yloxymethyl)oxirane (CAS 7312-54-1)
- 1-(4-Bromo-2,6-difluorophenyl)ethan-1-amine hydrochloride (CAS 2205384-10-5)
- 8-Thia-2-azaspiro[4.5]decane 8,8-dioxide (CAS 1250496-39-9)
- 1-{[(9h-fluoren-9-yl)methoxy]carbonyl}-1,2,3,6-tetrahydropyridine-3-carboxylic acid (CAS 1262769-81-2)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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