1-{[3-(4-methoxyphenyl)-2-methyl-1,2-oxazolidin-5-yl]methyl}-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile CAS 338399-94-3
| CAS No. | 338399-94-3 |
| Molecular Formula | C18H20N4O4 |
| Molecular Weight | 356.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-{[3-(4-methoxyphenyl)-2-methyl-1,2-oxazolidin-5-yl]methyl}-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 338399-94-3), a certified reference material (molecular formula C18H20N4O4, MW 356.38 g/mol) for analytical method development and quality control.
1-{[3-(4-methoxyphenyl)-2-methyl-1,2-oxazolidin-5-yl]methyl}-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (C18H20N4O4) 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. 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.
As a certified reference material (CRM), 1-{[3-(4-methoxyphenyl)-2-methyl-1,2-oxazolidin-5-yl]methyl}-3-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile 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 | C18H20N4O4 |
| Molecular Weight | 356.38 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related methoxyphenyl Standards
- 6,7-Bis(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 632361-67-2)
- N-(4-methoxyphenyl)-4-(4-nitrophenyl)piperazine-1-carboxamide (CAS 332945-53-6)
- (1-((4-Methoxyphenyl)sulfonyl)piperidine-3-carbonyl)glycine (CAS 919733-29-2)
- 4-[(2-{[(3-methoxyphenyl)amino]carbonyl}phenyl)(methyl)amino]-4-oxobutanoic acid (CAS 730976-62-2)
- 1-(4-Methoxyphenyl)-3-{[3-(trifluoromethoxy)phenyl]methyl}thiourea (CAS 1022590-75-5)
- 2-{[3-(4-methoxyphenyl)-4-oxo-3,4-dihydroquinazolin-2-yl]sulfanyl}acetohydrazide (CAS 193826-40-3)
- 1-(4-Methoxyphenyl)-2-{[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl}-1-ethanone (CAS 332884-42-1)
- 2-({3-[(2-methoxyphenyl)methyl]-4-oxo-3,4-dihydroquinazolin-2-yl}sulfanyl)acetic acid (CAS 771499-51-5)
Recommended Standards
- 1,4-Bis[(2-aminoethyl)amino]-5,8-dihydroxy-9,10-anthracenedione (CAS 96555-65-6)
- 1-Benzyl-N-(2,4-dinitrophenyl)piperidin-4-amine (CAS 866150-84-7)
- 1-(4-Ethylphenyl)-4-methyl-6-(trifluoromethyl)-1H,2H,3H-pyrrolo[3,2-c]quinoline (CAS 860789-44-2)
- 2-(3,6-Dinitro-9H-carbazol-9-yl)-N,N-diethylethan-1-amine (CAS 324780-02-1)
- tert-Butyl 2-(aminomethyl)butanoate (CAS 1372851-48-3)
- 5-Methyl-[2,2'-bipyridine]-3,3'-diol (CAS 137320-34-4)
- (E)-tert-Butyl 4-(4-phenylbut-3-en-1-yl)piperazine-1-carboxylate (CAS 1353990-96-1)
- 3-Cyclopropylisonicotinic acid (CAS 1256785-01-9)
- (2R,3S,4R,5R,6S)-5-acetamido-2-(acetoxymethyl)-6-(naphthalen-1-yloxy)tetrahydro-2H-pyran-3,4-diyl diacetate (CAS 121356-12-5)
- 2-(1-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3,3-dimethylcyclobutyl)acetic acid (CAS 2172125-35-6)
- 5-(2-Methoxyethoxy)furan-2-carbaldehyde (CAS 1541361-25-4)
- 2-(4-Nitro-1h-imidazol-1-yl)-1-phenylethan-1-one (CAS 91323-17-0)
- 3-Bromo-9H-Carbazole (CAS 1592-95-6)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com