3-methoxy-5-(methoxycarbonyl)thiophene-2-sulfonic acid CAS 1384431-25-7
| CAS No. | 1384431-25-7 |
| Molecular Formula | C7H8O6S2 |
| Molecular Weight | 252.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 252.26 g/mol gives 3-methoxy-5-(methoxycarbonyl)thiophene-2-sulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-methoxy-5-(methoxycarbonyl)thiophene-2-sulfonic acid (CAS 1384431-25-7), a certified reference material (molecular formula C7H8O6S2, MW 252.26 g/mol) for analytical method development and quality control.
Owing to a carbohydrate-derived structure, a sulfone group, 3-methoxy-5-(methoxycarbonyl)thiophene-2-sulfonic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
CATO manufactures 3-methoxy-5-(methoxycarbonyl)thiophene-2-sulfonic acid 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 | C7H8O6S2 |
| Molecular Weight | 252.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1991 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 4-phenoxybenzenesulfonyl fluoride (CAS 1368838-37-2)
- 2-((2-Fluorophenyl)amino)-5-methylthiazole-4-carboxylic acid (CAS 1391741-81-3)
- methyl 3-(3,4-dimethoxyphenyl)-2-methyloxirane-2-carboxylate (CAS 13605-37-3)
- Ethyl 5-(4-fluorophenyl)-1,2,4-thiadiazole-3-carboxylate (CAS 1393563-33-1)
- Ethyl 2-amino-2-cyanoacetate hemioxalate (CAS 75470-88-1)
- 3-(4-Hydroxy-2,6-dimethylphenyl)-2-methylpropanoic acid (CAS 194857-85-7)
- Bis(2-Fluoroethyl) carbonate (CAS 406-15-5)
- Cisatracurium EP Impurity G (CAS 96946-45-1)
- (R)-Morpholine-3-carboxylic Acid Hydrochloride (CAS 1187928-88-6)
- Sodium (2R,3S,4R,5R)-5-(6-amino-8-bromo-9H-purin-9-yl)-4-hydroxy-2-(((hydroxy((hydroxy(phosphonooxy)phosphoryl)oxy)phosphoryl)oxy)methyl)tetrahydrofuran-3-olate (CAS 81035-56-5)
- (E)-1-(3,4-Dimethylphenyl)ethan-1-one oxime (CAS 91817-69-5)
- Methyl 3-(2-(2-((4-chlorophenyl)amino)-2-oxoacetyl)-1H-pyrrol-1-yl)benzo[b]thiophene-2-carboxylate (CAS 477872-75-6)
- 6-(5-Methyl-2-furyl)-1,5,6,7-tetrahydro-4H-indazol-4-one (CAS 1428139-68-7)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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