Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate CAS 66319-07-1
| CAS No. | 66319-07-1 |
| Molecular Formula | C7H10O3S |
| Molecular Weight | 174.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate (CAS 66319-07-1), molecular formula C7H10O3S and molecular weight 174.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate (C7H10O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
CATO manufactures Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H10O3S |
| Molecular Weight | 174.22 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.) | 1975 |
| Sulfur Atoms | 1 |
Recommended Standards
- Methyl 4-Oxotetrahydrothiopyran-3-carboxylate (CAS 4160-61-6)
- S-Cyanoethyl-L-cysteine (CAS 3958-13-2)
- Methyl 4-methoxy-2,5-dihydrothiophene-3-carboxylate (CAS 22097-91-2)
- Sinalexin (CAS 200192-82-1)
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- 6-(4-Chlorophenyl)imidazo[2,1-b][1,3]thiazole-5-carbonitrile (CAS 143541-65-5)
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- 3-Ethylnonanoic acid (CAS 711027-63-3)
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