2-Methyltetrahydrothiophene-2-carboxylic acid 1,1-dioxide CAS 18458-93-0
| CAS No. | 18458-93-0 |
| Molecular Formula | C6H10O4S |
| Molecular Weight | 178.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Methyltetrahydrothiophene-2-carboxylic acid 1,1-dioxide (C6H10O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 178.21 g/mol, it falls into the medium-molecular-weight range.
2-Methyltetrahydrothiophene-2-carboxylic acid 1,1-dioxide (CAS 18458-93-0) is a high-purity analytical reference standard with the molecular formula C6H10O4S and a molecular weight of 178.21 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C6H10O4S |
| Molecular Weight | 178.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |
Related Methyltetrahydrothiophene Standards
- 3-Methyltetrahydrothiophene-3-carboxylic acid 1,1-dioxide (CAS 1546875-04-0)
- 3-Methyltetrahydrothiophene-3-carbaldehyde 1,1-dioxide (CAS 1780259-87-1)
- N-methyltetrahydrothiophene-3-sulfonamide 1,1-dioxide (CAS 302902-56-3)
- 2-Methyltetrahydrothiophene 1,1-dioxide (CAS 1003-46-9)
- 2-Methyltetrahydrothiophene-2-carbonitrile (CAS 940315-22-0)
- 3-Methyltetrahydrothiophene (CAS 4740-00-5)
- Benzyl 2-methyltetrahydrothiophene-2-carboxylate 1,1-dioxide (CAS 327618-08-6)
- 4-((N-Methyltetrahydrothiophene-3-carboxamido)methyl)benzoic acid (CAS 1488850-77-6)
Recommended Standards
- Thieno[2,3-b]pyridine-2-carboxamide (CAS 1824270-94-1)
- 2-(1-(Methylsulfonyl)cyclopropyl)acetic acid (CAS 1887209-88-2)
- Dimethyl 2-mercaptosuccinate (CAS 1795-56-8)
- 4-hydroxy-1-benzothiophene-2-carbaldehyde (CAS 1892706-91-0)
- 6,8-Dimethylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 830321-64-7)
- 6,6-Dimethylbicyclo[3.1.1]heptan-3-one (CAS 4722-54-7)
- Methyl 4-methyl-6-(methylthio)nicotinate (CAS 1355207-49-6)
- 6'-Amino-1-benzyl-3'-methyl-2-oxo-2'H-spiro[indoline-3,4'-pyrano[2,3-c]pyrazole]-5'-carbonitrile (CAS 496805-22-2)
- N-((4-allyl-5-((3-methoxybenzyl)thio)-4H-1,2,4-triazol-3-yl)methyl)-4-bromobenzenesulfonamide (CAS 338794-46-0)
- 2-[(3,4-Dimethylphenyl)amino]-5,6-dimethylpyrimidin-4(3H)-one (CAS 1306739-90-1)
- N-(2-((4-chlorophenyl)thio)ethyl)-3-methoxybenzamide (CAS 339275-86-4)
- 1-(2,2,2-Trifluoroethyl)piperidin-4-amine dihydrochloride (CAS 1177271-15-6)
- 4-Methyl-1-piperazinecarbothioic acid hydrazide (CAS 15970-51-1)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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