(4E)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-2-(4-methoxyphenyl)-4,5-dihydro-1,3-oxazol-5-one CAS 306976-28-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 306976-28-3 |
| Molecular Formula | C17H16N4O3 |
| Molecular Weight | 324.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4E)-4-{[(4,6-dimethylpyrimidin-2-yl)amino]methylidene}-2-(4-methoxyphenyl)-4,5-dihydro-1,3-oxazol-5-one (CAS 306976-28-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H16N4O3. Molecular weight: 324.33 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H16N4O3 |
| Molecular Weight | 324.33 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
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- 3-(2,6-Dimethylpyrimidin-4-yl)-1-(4-methylbenzenesulfonyl)urea (CAS 124813-67-8)
- 2-((4,6-Dimethylpyrimidin-2-yl)thio)-N-(2-nitrophenyl)acetamide (CAS 223485-55-0)
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Recommended Standards
- (2S)-2,6-Diamino-5-(((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanoic acid (CAS 32448-36-5)
- (5R,6R,6aR)-5-((R)-1,2-dihydroxyethyl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl benzoate (CAS 31795-13-8)
- Methyl ((benzyloxy)carbonyl)-L-alanyl-L-serinate (CAS 19542-34-8)
- 2,5-Dimethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 1180557-62-3)
- 1-(2-Hydroxyethyl)-1H-indole-3-carbaldehyde (CAS 161261-55-8)
- Cinnoline-8-carboxylic acid (CAS 1896374-95-0)
- 3-(5-Ethyl-1H-indol-3-yl)propan-1-amine (CAS 586336-14-3)
- 2-(5-Bromopyrazin-2-yl)acetic acid (CAS 1197226-32-6)
- N-(5-Cyclopropoxy-6-nitropyridin-3-yl)methanesulfonamide (CAS 1243440-60-9)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
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