Benzyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate CAS 296262-55-0
| CAS No. | 296262-55-0 |
| Molecular Formula | C21H22N2O5 |
| Molecular Weight | 382.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 296262-55-0), molecular formula C21H22N2O5 and molecular weight 382.41 g/mol, is a CATO reference standard with documented purity and traceability.
Benzyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (C21H22N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Benzyl 4-(2,5-dimethoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H22N2O5 |
| Molecular Weight | 382.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 2025 |
| Nitrogen Atoms | 2 |
Related Benzyl Standards
- 1-(2-(3,4-Dimethoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl)piperidine-4-carboxylic acid (CAS 1111058-13-9)
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- N-(3,5-Dimethoxyphenyl)-2-((6-(pyridin-2-yl)pyridazin-3-yl)thio)acetamide (CAS 892439-53-1)
- 3,3-((3,4-Dimethoxyphenyl)-methylene)bis(1H-indole) (CAS 33948-95-7)
- 3-(2,3-Dimethoxyphenyl)-5-((5-(3-fluorophenyl)-1,3,4-oxadiazol-2-yl)methyl)-1,2,4-oxadiazole (CAS 1251547-58-6)
- 3-(2,5-Dimethoxyphenyl)-4-methyl-2-oxo-2H-chromen-7-yl dimethylcarbamate (CAS 859668-98-7)
- 3-(2,4-Dimethoxyphenyl)-N-(2,5-dimethylphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483994-95-2)
- 3-(2,4-Dimethoxyphenyl)-N-(3,5-dimethylphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483994-94-1)
Recommended Standards
- 9,9-Bis(3,4-dihydroxyphenyl)fluorene (CAS 351521-78-3)
- Bis(3-hydroxypropyl) anthracene-9,10-dicarboxylate (CAS 74460-24-5)
- 7-Nitro-2-[2-(4-phenylpiperazin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 866133-86-0)
- Ethyl 5-cyano-6-(4-(4-methoxyphenyl)piperazin-1-yl)-2-oxo-1,2-dihydropyridine-3-carboxylate (CAS 338396-66-0)
- 5,7-Difluoro-3-methyl-1H-indole-2-carboxylic acid (CAS 1785399-14-5)
- n-Octylmagnesium Bromide (ca. 22% in Tetrahydrofuran, ca. 1mol/L) (CAS 17049-49-9)
- N-(1-methylcycloheptyl)thietan-3-amine (CAS 1862881-05-7)
- H-Gly-Gly-Sar-OH (CAS 38937-80-3)
- Serotonin Impurity 10 (CAS CATO-C4X-253410)
- Sodium 4-acetylbenzenesulfonate (CAS 61827-67-6)
- Benzyl(S)-methyl(1-phenyl-3-(pyrrolidin-1-yl)propan-2-yl)carbamate (CAS 675602-74-1)
- 5-((1,4-Diazepan-1-yl)methyl)pyrimidine-2,4(1H,3H)-dione (CAS 1428233-51-5)
- 8-(1-Methoxyethyl)-6-(trifluoromethyl)imidazo[1,2-a]pyridine-2-carboxylic acid (CAS 2654761-13-2)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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