Ethyl 2-oxo-6-((phenylsulfonyl)methyl)-4-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate CAS 902277-65-0
| CAS No. | 902277-65-0 |
| Molecular Formula | C21H22N2O5S |
| Molecular Weight | 414.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ethyl 2-oxo-6-((phenylsulfonyl)methyl)-4-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 902277-65-0), a certified reference material (molecular formula C21H22N2O5S, MW 414.47 g/mol) for analytical method development and quality control.
Structurally, Ethyl 2-oxo-6-((phenylsulfonyl)methyl)-4-(p-tolyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate (C21H22N2O5S) 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 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 414.47 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.
Physical & Chemical Properties
| Molecular Formula | C21H22N2O5S |
| Molecular Weight | 414.47 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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