Methyl 3-(2-benzenesulfonamidophenoxy)thiophene-2-carboxylate CAS 900018-86-2
| CAS No. | 900018-86-2 |
| Molecular Formula | C18H15NO5S2 |
| Molecular Weight | 389.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 389.45 g/mol gives Methyl 3-(2-benzenesulfonamidophenoxy)thiophene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 3-(2-benzenesulfonamidophenoxy)thiophene-2-carboxylate (CAS 900018-86-2), molecular formula C18H15NO5S2 and molecular weight 389.45 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 3-(2-benzenesulfonamidophenoxy)thiophene-2-carboxylate (C18H15NO5S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Methyl 3-(2-benzenesulfonamidophenoxy)thiophene-2-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 | C18H15NO5S2 |
| Molecular Weight | 389.45 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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- Peptide Impurity (CAS CATO-CPTD788810)
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