(4E)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-2-(4-methylphenyl)-4,5-dihydro-1,3-oxazol-5-one CAS 303998-87-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303998-87-0 |
| Molecular Formula | C17H16N4O2 |
| Molecular Weight | 308.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (4E)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-2-(4-methylphenyl)-4,5-dihydro-1,3-oxazol-5-one (CAS 303998-87-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C17H16N4O2. Molecular weight: 308.33 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C17H16N4O2 |
| Molecular Weight | 308.33 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 | 4 |
Related E Standards
- N-(4,6-Dimethylpyrimidin-2-yl)-4-nitrobenzenesulfonamide (CAS 153312-38-0)
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(3-(trifluoromethyl)phenyl)guanidine (CAS 94828-52-1)
- 1-(4,6-Dimethylpyrimidin-2-yl)-3-(3-(trifluoromethyl)phenyl)urea (CAS 302913-54-8)
- 2-((4,6-Dimethylpyrimidin-2-yl)thio)-N-(5-fluoro-2-methylphenyl)acetamide (CAS 303091-11-4)
- N-(4,6-Dimethylpyrimidin-2-yl)-N-(2,2,6,6-tetramethylpiperidin-4-yl)guanidine (CAS 675150-92-2)
- (4E)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-2-(4-fluorophenyl)-4,5-dihydro-1,3-oxazol-5-one (CAS 306976-27-2)
- Ethyl 4-((4,6-dimethylpyrimidin-2-yl)carbamoyl)-5-methylisoxazole-3-carboxylate (CAS 338761-56-1)
- 2-[(4,6-Dimethylpyrimidin-2-yl)sulfanyl]-N-(4-methoxyphenyl)acetamide (CAS 223485-53-8)
Recommended Standards
- (4AR,6S,7R,8R,8aS)-6-(allyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxine-7,8-diol (CAS 93382-48-0)
- (5-Phenyl-1,2-oxazol-3-yl)methyl N-(4-methylphenyl)carbamate (CAS 343374-59-4)
- (4AR,6R,7R,8R,8aS)-6-(allyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxine-7,8-diol (CAS 84276-56-2)
- 2-(Bromomethyl)-6-chloroquinoxaline (CAS 32601-89-1)
- (2R)-2-(ethylamino)propan-1-ol (CAS 34052-69-2)
- Methyl 6-amino-5-cyano-2-(((3-cyano-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-2-yl)thio)methyl)-4-(4-fluorophenyl)-4H-pyran-3-carboxylate (CAS 445384-74-7)
- 2-(2-Fluorophenyl)-3-oxobutanoic acid (CAS 93942-42-8)
- 1-(2-Amino-4-bromophenyl)-2-bromoethanone (CAS 1261581-05-8)
- Isoprocarb (CAS 2631-40-5)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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