Ethyl 5-(N-(2-ethoxy-2-oxoethyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate CAS 1400645-07-9
| CAS No. | 1400645-07-9 |
| Molecular Formula | C11H17N3O6S |
| Molecular Weight | 319.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 5-(N-(2-ethoxy-2-oxoethyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate (C11H17N3O6S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 319.33 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.
Ethyl 5-(N-(2-ethoxy-2-oxoethyl)sulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate (CAS 1400645-07-9) is a high-purity analytical reference standard with the molecular formula C11H17N3O6S and a molecular weight of 319.33 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H17N3O6S |
| Molecular Weight | 319.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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