1-(3-Phenyl-1,2,4-oxadiazol-5-yl)pyrazolidine-3,5-dione CAS 143995-04-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 143995-04-4 |
| Molecular Formula | C11H8N4O3 |
| Molecular Weight | 244.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Phenyl-1,2,4-oxadiazol-5-yl)pyrazolidine-3,5-dione (CAS 143995-04-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H8N4O3. Molecular weight: 244.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H8N4O3 |
| Molecular Weight | 244.21 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- Solanesyl Bromide (CAS 52610-77-2)
- 4-Methyl-1-(tetrahydro-2H-thiopyran-3-yl)pyrrolidine-3-carboxylic acid (CAS 1560943-70-5)
- Tyr-PDGF A-Chain (194-211) (H-8335.0500) (CAS 137132-69-5)
- (3-Bromo-5,6,7,8-tetrahydroquinolin-5-yl)methanamine (CAS 2387602-08-4)
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