| CAS No. | 475055-38-0 |
| Molecular Formula | C19H21N3O5S2 |
| Molecular Weight | 435.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 2-Oxo-2-((4-(pyrrolidin-1-ylsulfonyl)phenyl)amino)ethyl 2-(methylthio)nicotinate is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Oxo-2-((4-(pyrrolidin-1-ylsulfonyl)phenyl)amino)ethyl 2-(methylthio)nicotinate (CAS 475055-38-0), molecular formula C19H21N3O5S2 and molecular weight 435.52 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Oxo-2-((4-(pyrrolidin-1-ylsulfonyl)phenyl)amino)ethyl 2-(methylthio)nicotinate (C19H21N3O5S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 435.52 g/mol, it falls into the moderately-high-molecular-weight range. 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 2-Oxo-2-((4-(pyrrolidin-1-ylsulfonyl)phenyl)amino)ethyl 2-(methylthio)nicotinate 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.
| Molecular Formula | C19H21N3O5S2 |
| Molecular Weight | 435.52 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |