4-Methyl-2-oxotetrahydrofuran-3-carboxylic acid CAS 96540-43-1
| CAS No. | 96540-43-1 |
| Molecular Formula | C6H8O4 |
| Molecular Weight | 144.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H8O4, 4-Methyl-2-oxotetrahydrofuran-3-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 144.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Methyl-2-oxotetrahydrofuran-3-carboxylic acid (CAS 96540-43-1), molecular formula C6H8O4 and molecular weight 144.13 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C6H8O4 |
| Molecular Weight | 144.13 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1984 |
Related Methyl Standards
- (R)-5-Oxotetrahydrofuran-3-yl acetate (CAS 138666-02-1)
- (S)-5-Oxotetrahydrofuran-3-yl acetate (CAS 191403-65-3)
- (R)-2-(5-Oxotetrahydrofuran-2-yl)acetic acid (CAS 63597-98-8)
- (S)-2-(5-Oxotetrahydrofuran-2-yl)acetic acid (CAS 66512-67-2)
- 2-Methyl-5-oxotetrahydrofuran-2-carboxylic acid (CAS 57651-41-9)
- 4-Methyl-5-oxotetrahydrofuran-3-carboxylic acid (CAS 89533-85-7)
- 4-Oxotetrahydrofuran-3-yl acetate (CAS 22594-21-4)
- Methyl 4-oxotetrahydrofuran-2-carboxylate (CAS 98136-12-0)
Recommended Standards
- 4-Methoxy-2-methylene-4-oxobutanoic acid (CAS 7338-27-4)
- 4-Hydroxyhexane-2,3,5-trione (CAS 4384-08-1)
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- 4-(2-Aminoethoxy)-1,2,5-oxadiazol-3-amine (CAS 313549-19-8)
- 4-[(4-fluorobenzene)amido]benzene-1-sulfonyl chloride (CAS 1016713-31-7)
- (8Z,14Z)-Icosa-8,14-dienoic acid (CAS 135498-07-6)
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- Ethyl 2-(2-methoxyphenoxy)-2-methylpropanoate (CAS 211177-72-9)
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